The attack outside Oliver Citywide Academy unfolded before classes and ultimately contributed to the program’s relocation.
PITTSBURGH, PA — The first gunshots were detected outside Oliver Citywide Academy at about 7:25 a.m., as buses were still carrying children toward the North Side school and much of the day’s staff and student body had yet to arrive.
By the time that morning ended on May 24, 2023, 15-year-old Derrick Harris Jr. had died at a hospital, another 15-year-old student was in police custody and the school had closed for the day. Three years later, Jaymier Perry admitted in court that he intentionally killed Harris. Perry, now 18, pleaded guilty June 24 to first-degree murder and is expected to receive 35 years to life in prison under an agreement scheduled to be finalized July 29. The plea supplies a legal conclusion to the homicide case, but it does not undo the changes that followed at the school or answer every question surrounding the firearm and Perry’s preparations.
The sequence began before the usual rush at the Brighton Road entrance. Prosecutors said Perry knew that he and Harris were commonly among the earliest students to reach Oliver. Perry brought his mother’s 9 mm handgun to the campus and approached Harris on the front steps, Allegheny County Deputy District Attorney Ryan Kiray said during the plea hearing. Investigators later said Perry told them Harris had taken his Beats headphones two days earlier. That allegation became the stated reason for an attack that prosecutors portrayed as planned, with Perry using his knowledge of the morning routine to find Harris before the building became crowded.
Pittsburgh’s gunfire-detection technology first recorded two shots and then nine more, authorities said. Police officers were dispatched to the school and found Harris critically wounded outside its entrance. They provided emergency care until paramedics took him to Allegheny General Hospital, where he was pronounced dead. Kiray said Harris had been struck 10 times. The official descriptions were restrained but left no uncertainty about the severity of the attack. The shooting was not presented as an exchange of gunfire, and the reports reviewed for this article do not say that Harris possessed a weapon or threatened Perry that morning.
As some officers stayed with Harris, others encountered Perry nearby. Police said he was running from the school with a handgun. Officers held him at gunpoint, arrested him and recovered the weapon, according to the prosecution’s account. That rapid detention meant the case did not begin with a prolonged search for an unidentified shooter. Police soon described the suspect and victim as students at the same school. The immediate recovery of a gun, along with surveillance footage and Perry’s later statements, gave investigators several forms of evidence before the first full school day after the killing could begin.
Inside and around Oliver, administrators had to manage students who were at different points in their morning trips. Those already in the building were kept there while authorities secured the area. Buses heading toward Oliver were diverted to another Pittsburgh Public Schools building, and some families were notified that children should return home. The district announced that Oliver would remain closed and that instruction would move online temporarily. Early public information from the district was limited, creating frustration among people seeking details, but officials confirmed later that day that a student had died and that the school community was being supported.
Investigators said surveillance video recorded Perry walking toward Harris on the steps. Kiray told the court that Perry fired until the gun was empty, then approached Harris after he fell and assaulted him before leaving. The prosecutor also described Perry’s police interview. When detectives asked about his actions after the shooting, Kiray said Perry responded, “If you’re going to shoot someone, you may as well finish the job,” and laughed. The court presentation did not depend on that statement alone. Prosecutors also had the school recording, the gun taken during Perry’s arrest and evidence connected to the shots detected outside the building.
The case then moved at the pace of a serious adult criminal prosecution, even though both students were 15. Perry was charged with homicide and firearms offenses and held without bail. Public reporting at the time referred to him as an accused shooter because the charges had not been decided. His June 2026 plea changed that status: Perry admitted first-degree murder, an offense requiring an intentional killing. The plea spared the families and school community from a trial that could have included the surveillance footage, police witnesses, forensic testimony and a detailed public replaying of the morning.
The proposed sentence is tied to Perry’s age when the crime occurred. Pennsylvania law sets special penalties for people who commit first-degree murder before turning 18. For a person who was 15, 16 or 17, the law permits life without parole or a sentence carrying a minimum of at least 35 years and a maximum of life. Perry’s agreement calls for 35 years to life. That term offers the possibility of parole after the minimum period, but it does not guarantee release. A parole decision would be made decades from now under the laws and procedures then in force.
Kiray’s account indicated that the prosecution considered the attack deliberate. Perry allegedly brought a gun from home, anticipated when Harris would arrive and approached him before classes. Those assertions help explain why the negotiated conviction was first-degree murder rather than a lesser homicide offense. The publicly available reports do not provide the defense’s complete evaluation of the evidence or explain why both sides chose the agreement instead of trial. They also do not describe any mental-health evidence, school records or personal history that might be presented at sentencing. Such information, when available, may affect how a court understands a juvenile-age defendant without changing the admitted crime.
For Oliver Citywide Academy, the killing was not an isolated trauma. In January 2022, 15-year-old student Marquis Campbell was fatally shot while sitting in a school van outside the campus. Reports also documented other serious incidents involving the school. Oliver served children in grades three through 12 who needed special-education services, including full-time emotional support. The program’s small enrollment and specialized purpose meant students, families and employees formed a community with needs that could not be addressed simply by canceling classes for a few days.
District officials eventually decided not to return students to the Oliver building for the next school year. Instead, the program was divided among satellite locations at Greenway, Perry, Milliones and King facilities. Administrators said Oliver would retain its own leadership, teachers, staff, educational spaces and support services at the host buildings. The plan placed smaller groups of students in different locations while preserving the specialized program. Superintendent Wayne Walters referred to the deep pain attached to the original building after the deaths of Harris and Campbell. The Pennsylvania Bureau of Special Education approved the arrangement.
The relocation changed the physical setting in which Oliver students received services, but officials said it was also meant to give them access to broader school environments when appropriate. Staff members met with families to review individual education plans and determine placements. Teachers and paraprofessionals who wanted to continue with the program were moved to the satellite sites, according to local reporting. The old building’s future was less clear. In that way, the aftermath of Harris’ death extended from a criminal investigation into transportation, staffing, special-education planning and the daily routines of children who had no role in the violence.
Harris’ family has had to experience that institutional response while waiting for the criminal case to reach a result. A family fundraising page remembered him as kindhearted, loving and funny. Public reports have released little else about his interests, schoolwork or plans. The imbalance is common in court coverage, where evidence about the accused person’s conduct becomes public while the victim’s life is reduced to a name, age and photograph. Harris was not merely the subject of surveillance evidence or a count in an indictment. He was a student arriving for school when he was killed.
The next formal step will occur in Hickton’s courtroom. Perry is scheduled to be sentenced July 29, and the hearing may provide an opportunity for Harris’ relatives to speak about the loss and for Perry to address the court. Reports of the plea proceeding did not identify any statement of remorse from him. The judge is expected to impose the negotiated term, but the sentence will not become official until it is entered on the record. Perry will then begin serving a punishment that may keep him incarcerated for most of his adult life.
The case’s chronology is measured in minutes at the start and years at the end: gunfire before classes, an arrest soon afterward, a school program displaced within months and a guilty plea more than three years later. Sentencing will close the trial-level prosecution, but the consequences remain visible in the four buildings now serving Oliver students and in a family approaching another milestone without Derrick Harris Jr.
Author note: Last updated July 22, 2026.