The University of Colorado Boulder community continues to mourn the tragic death of Luca Hanlon, a second-year student who was fatally shot during an incident in the University Hill neighborhood on Halloween night.
According to Boulder Police, officers responded shortly before 11:30 p.m. on October 31, 2026, to reports of gunfire at a residence in the 700 block of Marine Street. When officers arrived, they found two 19-year-old men suffering from gunshot wounds. Both victims were taken to hospital, but Hanlon died from his injuries early the following morning. The second student was critically injured.
The shooting reportedly followed an earlier police response to a noise complaint involving a large Halloween party at the residence. Investigators said a group later attempted to force its way into the house, and gunfire erupted after a confrontation.
The university confirmed Hanlon’s identity on November 2, expressing sorrow over the loss and extending support to his family, friends, classmates and others affected by the violence.
Police subsequently arrested 18-year-old Omar Perez of Thornton in connection with the shooting. He faces charges including first-degree murder, assault and attempted murder. Authorities said he was not affiliated with the university. The investigation has continued, with detectives seeking information about other individuals who may have been involved.
The tragedy has deeply affected students and staff, prompting a campus vigil where members of the community gathered to remember Hanlon and support those grieving.
As classmates and friends reflect on the loss, the incident has renewed concerns about safety and violence around university communities. The university has encouraged anyone struggling with the tragedy to seek support through its student assistance services.
Hanlon’s death remains a painful loss for the CU Boulder community. His family and loved ones have requested privacy as they navigate this difficult time.