Teens Laugh After Arrest, Think Jail Is a Joke — Then the Judge Speaks
The seat please? Are we going to be in the same one? What do you mean same one? Same jail? Yeah. Yes. Wait, they went through his phone? No, they’re going to go THROUGH HIS PHONE. OH, YOU TRIED to look good FOR YOUR MUG SHOT? OH, WE’RE going to get a mug shot? Well, we’re going to jail.
What do you think? that’s crazy. Dude, I was going to do my makeup this morning for the mug shot, but I couldn’t find anything. I’m glad I don’t actually look too bad today. I look horrible. This is Isabel Valdez and Lois Slipper, sitting in the back of a police car, already arrested, already caught.
And instead of tears, instead of silence, they are laughing. Because to them, the only thing that went wrong that day was getting caught before they could finish what they started. This is the chilling case of two teenage girls who allegedly spent 3 months building a plan designed to end a classmate’s life inside a school bathroom.
And every detail you’re about to hear has been verified through court documents, arrest reports, prosecutor filings, and body cam footage. Prepare yourself, because what allegedly unfolded at Lake Brantley High School between October 2025 and January 23rd, 2026 raises unsettling questions about radicalization, obsession, and how long a plan can stay hidden inside a school with thousands of students.
To understand how two teenage girls ended up in the back of that patrol car, we need to go back to where it all began. Isabel Aurelia Valdez and Lois Olivio Slipper attended Lake Brantley High School in Altamonte Springs, a suburban city of roughly 45,000 people in Seminole County, just north of Orlando. It’s a large public high school, the kind of place where students move between classes in packed hallways, where a student can become invisible in plain sight.
Isabel Aurelia Valdez, 15, was not invisible. Friends and classmates knew her by her nickname, Jimmy. She was best friends with 14-year-old Lois Olivio Slipper. They were close, inseparable in the way that teenage best friendships often are. What nobody realized was that beneath that friendship, something much darker had taken root.
Keep this in mind, because the plan that authorities say these two girls built together did not begin the week before it was stopped. It allegedly began 3 months earlier. That timeline matters enormously for what comes next. In the previous months, Valdez had developed what authorities described as an obsession with Adam Lanza, the gunman responsible for the December 2012 massacre at Sandy Hook Elementary School in Newtown, Connecticut, where 20 children and six staff members were killed. Lanza died at
the scene of a self-inflicted gunshot wound. 13 years later, a teenager in suburban Florida had reportedly become consumed by him. Valdez told investigators she used to be able to hear Lanza’s voice in her head, but for some reason, that voice, she said, had recently gone silent, and she believed she had found a way to bring it back, or bring him back entirely.
The plan, as she described it to police, involved killing a fellow student, a student she had selected for a specific reason, and she didn’t just pick someone at random. She had been watching one specific student for weeks. She knew his schedule better than he did. The victim was a classmate at Lake Brantley.
So, why did he get targeted? Well, Valdez saw Adam Lanza when she looked at the student. She told police that killing the student would create a supernatural blood bond with Lanza that would resurrect him from the dead. Keep this detail in mind. It becomes central to everything that follows. That belief traces directly back to the Sandy Hook massacre.
In certain online spaces, the perpetrator has become the subject of a disturbing cult of obsession, a phenomenon researchers and law enforcement have tracked for years. The FBI and Department of Homeland Security have documented cases where young people have been radicalized through these forums and platforms that glorify mass violence.
Prosecutors allege that Valdez was not operating in isolation. She’d actually immersed herself in this material deeply enough to construct an elaborate belief system around it. The Columbine High School shooters, Eric Harris and Dylan Klebold, who killed 13 people in Littleton, Colorado in April 1999, were also referenced in the patrol car footage.
These girls brought up their names so casually, so naturally, even while they waited for booking. That detail, the casual in-custody discussion of mass killers, was cited by prosecutors as further evidence of the kind of thought process they were dealing with. But there was something critical investigators needed to determine from the very beginning.
>> How long had this been building? Turns out, the alleged plot had been in motion since approximately October 2025, 3 full months before the knife arrived at Lake Brantley on January 23rd. By October 2025, Valdez had begun to plan. She memorized the victim’s class schedule.
She tracked his movements through the school. She followed him through the hallways and, without his knowledge, photographed him. The photographs were a form of surveillance. They were evidence of a deliberate and systematic process of target selection. But here is what made this case more than a disturbing story about one girl’s obsession.
Valdez did not plan this alone. She brought someone in with her, and the role that person played was specific, active, and documented. It was her friend, Lois Slipper. Slipper’s role was specific and active. She wasn’t just aware of the plan. She actually helped execute the preparation. Police reports showed that Slipper helped sharpen the knife that Valdez intended to use.
She tested its sharpness, not against a surface, but against her own skin, and against Valdez’s shirt to confirm the blade was ready. The two went into a school restroom together to do this. Inside the building, during school hours. That detail, the testing of the blade inside the school in advance, is one of the pieces of evidence prosecutors would later highlight as proof of premeditation.
Defense attorneys entered not guilty pleas, but the physical location of the sharpening, a school bathroom on school grounds in the days before the planned attack, was not circumstantial. It was documented, confirmed by Valdez’s own statements to investigators. Slipper also drew images of the intended victim.
The drawings depicted the classmate dead, hanging from a rope with Valdez beside him. Investigators described the sketches as graphic and disturbing. Additional sexually explicit drawings of the same student were also found among Slipper’s materials. Prosecutors cited these drawings in the motion for pretrial detention as evidence of Slipper’s continued engagement with the plan over time, not a passing moment of dark imagination, but images created and kept.
Prosecutors said Slipper brought supplies to school on the day of the planned attack. The supply list included latex gloves at Valdez’s specific request. Latex gloves, the kind someone would wear to hide evidence. It also included chocolate, a lighter, cigarettes, and flowers. Think about that. The cigarettes, according to Valdez’s own statement to police, were planned for after the killing. She knew she would be arrested.
She planned to smoke while waiting for law enforcement to arrive. The flowers were intended for the victim’s body. The Clorox wipes, also brought to campus, according to the motion, were part of the cleanup plan. This was not an impulsive act. It was not a sudden eruption. Every item in that bag was selected with a purpose in mind.
Every item reflected a specific step in a plan that had been in motion for 3 months. Shockingly enough, the bag wasn’t even the most damaging piece of evidence. The night before the ritual, she’d already put it in writing. On the Discord messaging platform, Valdez wrote to Slipper, “It’s going to be over by tomorrow.
” She added, “I’m going to make a blood ritual for Adam Lanza.” She asked Slipper explicitly to bring the latex gloves. These messages were among the materials prosecutors cited in their motion to keep both defendants in custody without bond. There was something else in those messages, something investigators flagged as they built their picture of the alleged conspiracy.
The communication showed not just planning, but anticipation, excitement, a countdown. Valdez’s message said it would be over by the following day. She was marking the calendar. She was waiting for the day she had selected. The plan, according to the arrest report, was specific and sequential. Valdez would wait outside the boys’ bathroom and push the victim inside.
Once inside the stall, she would either stab him in the stomach or cut his throat with the knife. A microfiber towel had been brought to muffle any sound. After the killing, the blood ritual would be performed with the victim’s remains. The flowers would be placed on the body, then the cigarette. Valdez told investigators she had also considered the timing carefully.
She knew which part of the school day gave her the best access to the victim near the bathroom. She had followed him. She had studied his route. The January 23rd window had been selected. Then a classmate picked up a phone and typed a warning into an app. The entire sequence, 3 months of planning, target selection, supply acquisition, blade sharpening, Discord messages, and a morning arrival at Lake Brantley High School with a 12-inch knife, collapsed because one student decided to say something.
On the evening of January 22nd, 2026, a student at Lake Brantley High School opened FortifyFL. FortifyFL is Florida’s school safety tip application, a platform where students, parents, and community members can submit anonymous reports of potential threats. The app routes tips directly to law enforcement and school officials.
Florida launched the system following the 2018 Marjory Stoneman Douglas High School shooting in Parkland, which killed 17 people. The intent was precisely this, to give students a frictionless, anonymous way to report threats without fear of social consequences. The student who reported made a simple warning.
A student named Jimmy, the nickname used by Valdez, planned to kill somebody we know from school the following day. The tip was submitted on January 22nd. The attack was planned for January 23rd. That student’s decision to open that app and type those words is the only reason this case involves an attempted murder charge and not a completed one.
But here’s what the defense didn’t know when they later filed not guilty pleas. The tip was not the only thing waiting for Altamonte Springs police on the morning of January 23rd. The evidence inside the school itself would add a second layer that the anonymous warning had only begun to reveal. By 7:38 a.m.
on January 23rd, 2026, police had contacted Lake Brantley High School security. Officers pulled Valdez from class. Both Valdez and Lippert initially denied knowing anything about any plot. Then investigators searched Valdez’s backpack, and they found exactly what the tip said would be there. The knife was there. A 12-in knife, the exact same knife Lippert had allegedly helped sharpen in a school bathroom in the days before the arrest.
Lippert was pulled from class next. Both were arrested and transported to booking. Do me a favor and stand up, put your hands behind your back. I’m just going to tighten these just a little bit, okay? Don’t move. You start pushing on your hands, they’ll get real tight on you. I can’t say just leave your hands comfortable. You all right? Yeah.
You need me to loosen them up any? Which one? Look, it’s like I. It’s just like seven in the back of the thing. That is when the patrol car camera began recording. The footage that began this story. The footage a Florida judge later said he could not ignore. Most people when arrested for something this serious go quiet.
These two didn’t, and what they said on camera is what changed everything at the bond hearing. They talked about going to the same jail. Are we going to be in the same one? What do you mean the same one? Same jail. Yeah. Valdez and Lippert sat together in the back seat, physically close, unheard. They spoke about their situation with a lightness that will make you pause.
They talked about the anonymous tip. They were angry about it. Going to be arrested, too. What? Why? Yes, I told him he knew. He didn’t report me. I told him already. He did a tip? I There was a tip There was a tip shown. Did you all see it? No? He snitched. I don’t know why he wouldn’t tell the police that he put in his tip, though.
Huh? Please, he did a tip, though. Cuz that I It was an anonymous tip. It’s like I was assuming it by the writing. Yeah. Just like Yeah. But I knew I shouldn’t have told him, cuz he was like, “Okay, you please tell me I can’t sleep tonight.” you, god. So cold in that room. Which I know. Dude, they had me sitting there, and I was so Dude, they took away my chocolate. No.
I was able to eat like a part of it, like a part of the big bar. Oh my god. But I didn’t save it. Well, you ate it, damn it. I I wanted you to come back to second period so I could have nibbled on some with you. I was like That was my main goal. Valdez was regretting the timing, not the plan. Dude, I missed that I should have done it in the morning. Yeah.
Dude, I knew it was right there. I was following behind him. They discussed how much time they might serve. That is a school shooting, at least. We’d be in in prison for life. Yeah. Well, now I wonder what we’re going to get. I don’t know if I can get that much time. I will I got to I I like to test the knife for a few seconds, yeah.
They calculated possible sentences with the casual detachment of two people discussing homework deadlines, not criminal penalties for attempted murder. They even discussed the possibility of having a homosexual relationship while being incarcerated. We’re going to become one of those lesbian couples now in jail, too.
Yeah, and you could be the butch. Yes. Hey, hey, this is my Stay away. Then talked about how they wanted to look for their mug shots. Were you trying to look good for your mug shot? Oh am I going to get a mug shot? Well, we’re going to jail, what do you think? Dude, I was going to do my makeup this morning for the mug shot, but I couldn’t find anything.
I’m glad I don’t actually look too bad today. I look horrible. It’s over. It’s all right. You don’t need to I’m Sorry, you’re the butch. It doesn’t matter if you look good. Hey, at least they going to see They were going to see me some way or another in the mug shot. Then they playfully discussed possible jail terms.
Honestly, we’re probably going to get like a minimum of what, 4 years or so? I might get it for years. Yes, you are. You helped. Dude, I That was like I’m not getting I’m not doing that. At one point, Valdez addressed her own conscience directly and without hesitation. I don’t feel guilty for my actions, but I feel guilty on how you were going to feel, cuz honestly, I don’t care.
Then the two returned to discussing the knife. They discussed sharpening it. The conversation drifted back to Adam Lanza, to Klebold and Harris. The names moved through the conversation like familiar reference points. They laughed, but the jokes ended on March 11th, 2026, when it was time for their bond hearing.
The defense claimed that these were minors in an extreme situation, that the laughter and bravado were a coping mechanism, a way two teenage girls were processing the incomprehensible reality of their arrest. Lippert’s parents took the stand and offered to supervise their daughter at home under strict monitored conditions. The argument was earnest.
Then the prosecution’s evidence was presented in full. Assistant State Attorney Dominic Leo addressed the court. He told the judge directly, “There are no conditions of release reasonably sufficient to protect the community from the risk of physical harm.” Remember that patrol car footage? Remember Valdez saying she should have acted earlier that morning, that the victim had been right there? That statement, captured on camera while she was in custody, was not hypothetical.
It was a statement of continued intent. The footage was not evidence of shock or confusion. It was evidence of the same mindset that had allegedly driven 3 months of planning, stalking, and preparation. The judge denied bond for both defendants. Both Valdez and Lippert were ordered held without bond pending trial.
In February 2026, the State Attorney’s Office filed formal adult charges against both defendants. Both Isabel Valdez and Lois Lippert were charged as adults with attempted first-degree premeditated murder, attempted felony murder, and possession of a weapon on school property. The decision to charge them as adults was deliberate and documented.
>> The State Attorney’s Office explained publicly they were charging the teens as adults to give the justice system more options to incarcerate and control the defendants long-term than are available in the juvenile justice system. In the juvenile system, jurisdiction typically ends at age 21.
In the adult system, the consequences extend further, and the sentencing range is substantially broader. Attempted first-degree premeditated murder in Florida carries up to life in prison for adult defendants. For juveniles, outcomes are capped and bound differently. The State Attorney’s Office made the calculus explicit.
They wanted the full range of legal tools available. There was one more investigative thread that had not been closed by the time of the bond hearing. Altamonte Springs Police, the Seminole County Sheriff’s Office, and the FBI were also investigating Valdez’s alleged connection to three swatting calls made to Lake Brantley High School earlier that month on January 8th, January 20th, and January 22nd.
Swatting calls are false emergency reports designed to trigger armed law enforcement responses to a location. The January 22nd call, the same day the Fortify FL tip was submitted, placed the school on alert twice in one day. The investigation into those calls was ongoing, and no charges related to them had been publicly filed as of the most recent reporting.
The next scheduled court hearing for both defendants is April 29th, 2026. The patrol car footage, the laughter, the makeup comment, the statement that she didn’t feel guilty, the regret about the timing was entered into the official court record. Prosecutors have indicated it will remain central to their argument that both defendants continue to pose a risk.
Isabel Valdez and Lois Lippert are currently held in Seminole County custody without bond. Both have pleaded not guilty. Had they not been discovered early enough, we would be looking at an entirely different situation. A murdered boy, a broken family.
