Omar Perez, 19, appeared in Boulder County District Court Tuesday, Nov. 3 at 1:30 p.m. for first-degree murder, first-degree assault and first-degree attempted murder. Judge Nancy Salomone denied a defense motion to grant bail.

Prosecutors requested additional time to potentially file further charges against Perez as the investigation continues. District Attorney Michael Dougherty said in a press conference outside the court that officials are still investigating individuals allegedly with Perez at the time of the shooting.

“There are likely going to be additional charges filed as the investigation continues to move forward,” Dougherty said.

On Saturday, Oct. 31, Boulder police responded to reports of shots fired in the 700 block of Marine Street. Luca Hanlon, 19, was fatally shot, and a second 19-year-old victim, who remains unidentified, is still in the hospital with no update on his condition.

Perez was arrested and charged less than 36 hours after police received the first reports. A group allegedly including Perez was seen on a doorbell camera at the house where shots were fired.

The group became involved in a physical altercation with the residents of the house, after which Perez allegedly took three or four shots and left the house, according to the police affidavit.

Perez was turned in by his sister after she recognized his face in the doorbell camera video, according to the affidavit; the DA did not confirm the source of the tip.

“The work by the Boulder Police Department did generate a significant amount of leads and tips,” Daugherty said, “I’m still encouraging community members, friends, whoever might have information to reach out… with those tips.”

Police are soliciting submissions to their online portal of photos or videos taken in the area of the event.

Perez, a Thornton resident, is not a CU student and was not affiliated with the residents of the house, officials say. Police used the Life360 app, volunteered by the family, to track Perez’s movements from his home in Thornton to Boulder and back again, according to the affidavit.

“We have enough evidence for the felony case to move forward,” Dougherty said. “Communities and people have a right to be kept safe.”

The trial is scheduled for Feb. 10; Perez waived his right to a trial within 35 days of charges being filed. No plea has been issued. The case will be presided over by Judge Andrew Hartman.

Hanlon’s roommates were present at the hearing, as well as Perez’s mother and sister. All parties declined to comment and continue to request privacy.

University officials have issued several statements in support of the victims and the university community. Some students have raised concerns about safety at off-campus parties.

“We have to be safe, and if that means hiring security at the door at a really big party,” said Aaron Siegal, a CU Boulder senior, “I think it’s worth it.”

This was Boulder’s first homicide in 2026.

“I would encourage students, young people who were impacted by this… lean on one another and the resources around you,” Daugherty said, “CU has a lot of resources.”