CU Student Death: University of Colorado Student Shot Dead in Boulder Halloween Party Shooting

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A University of Colorado Boulder student has died after being shot during a Halloween house party in Boulder, Colorado, while another student remains in critical condition following the same incident. The fatal shooting happened late on Saturday, October 31, 2026, at a residence in the 700 block of Marine Street in the University Hill neighbourhood.

Boulder Police Department confirmed on Sunday, November 1, that two 19-year-old men, both students at the University of Colorado Boulder, had sustained gunshot wounds. They were taken to hospital, where one later died from his injuries. The second victim remained in critical condition in the initial police update.

The shooting has prompted a homicide investigation, with detectives seeking information from witnesses and members of the public. Police have also released photographs and video of two men they want to identify and interview in connection with the events preceding the gunfire.

The identity of the student who died had not yet been released. The Boulder County Coroner’s Office is responsible for formally identifying the victim after notifying the family.

What Happened in the CU Student Shooting?

According to Boulder police, officers were initially called to the Marine Street residence on Saturday night following a noise complaint involving a large Halloween gathering.

The party reportedly featured a live band and attracted hundreds of attendees. Organizers had registered the gathering through a party-registration programme associated with the university and local police.

Officers arrived shortly after 10 p.m. and determined that the gathering had reached the level of a nuisance party. Police issued a citation to the people responsible for the residence, and one highly intoxicated individual was taken into protective custody.

Following the police intervention, the party began to break up. Hundreds of attendees reportedly left, although a smaller group, including people who lived at the property, remained inside.

At approximately 11:28 p.m., police began receiving emergency calls reporting gunfire at the same address.

Officers arrived within minutes and found two 19-year-old men suffering from gunshot wounds. Emergency assistance was provided, including the application of a tourniquet to one victim, before both were transported to hospital.

One of the students later died, while the other remained in critical condition.

Where Did the Fatal Shooting Happen?

The shooting occurred at a residence in the 700 block of Marine Street, near the intersection of Seventh Street and Marine Street in Boulder, Colorado.

The location is within the University Hill neighbourhood, an area close to the University of Colorado Boulder campus and known for its student population and residential gatherings.

Police established a security perimeter around the property while investigators examined the scene and gathered evidence. University police also helped secure an area near the western side of the campus.

The incident was treated as a homicide investigation, with authorities asking residents and witnesses to avoid interfering with the police investigation.

What Led to the Shooting?

Investigators believe the gunfire followed an attempted forced entry into the residence.

According to the police account, a group of individuals allegedly tried to force their way into the home after most of the Halloween party attendees had left. A confrontation reportedly followed, and shots were fired inside the property, striking the two students.

Police have not publicly established what triggered the confrontation or explained the relationship between the people attempting to enter the residence and those who remained inside.

Detectives are continuing to examine witness accounts, video recordings and other evidence to establish the full sequence of events.

The precise circumstances surrounding the shooting remain under investigation.

Police Search for Two Persons of Interest

Boulder police have released photographs and video footage of two men they want to identify and interview as part of the investigation.

Authorities described the first individual as a man with short, dark hair and facial hair, wearing a red hooded sweatshirt underneath a black jacket.

The second person was described as a man with short, dark hair, wearing a black shirt featuring an Art the Clown image and a silver-coloured chain necklace.

Police have emphasised that they want to speak with these individuals. They have not publicly established that either man fired the shots, and the descriptions should not be treated as proof of criminal involvement.

Detectives have interviewed approximately 20 witnesses and are pursuing additional leads. Investigators are also seeking information from people who attended the Halloween gathering or may have recorded video before, during or after the confrontation.

Anyone with relevant information is asked to contact Boulder Police Dispatch at 303-441-3333 and reference case number 26-10148. Photographs and video can also be submitted through the department’s evidence-tip portal.

University of Colorado Responds to Student Death

The shooting has raised concern across the University of Colorado Boulder community, particularly among students and families following confirmation that both victims attended the university.

CU Boulder Police Chief Ashley Griffin joined Boulder police officials in addressing the incident and the university community’s safety.

University officials have also made support services available to students affected by the shooting, including people who witnessed the incident or knew the victims.

The university’s Office of Victim Assistance provides confidential support and can be reached at 303-492-8855.

Police have announced plans for increased patrols around University Hill as the investigation continues.

Boulder Police Treat Shooting as a Homicide Investigation

Boulder Police Chief Stephen Redfearn described the shooting as a serious act of violence and said detectives were committed to identifying those responsible.

The incident was identified by police as Boulder’s first homicide of 2026. The investigation involves cooperation between Boulder police, university police and the Boulder County District Attorney’s Office.

Authorities have asked the public to avoid speculation and provide information that could help investigators reconstruct what happened inside and outside the residence.

At the time of the initial announcement, no arrest had been publicly confirmed, and the two people of interest had not been formally identified.

CU Student Death and Boulder Shooting: Incident Details

Community Awaits Further Information

The death of a University of Colorado Boulder student in the Marine Street shooting has brought renewed attention to safety concerns surrounding gatherings in the University Hill neighbourhood.

For the family and friends of the student who died, the immediate concern is a devastating loss. Another student’s critical injuries have added to the seriousness of the incident, while witnesses and members of the university community await further information from investigators.

Police continue to seek assistance from anyone who attended the Halloween party or has information about the confrontation and shooting.

The victim’s identity, the circumstances that led to the confrontation and the possible involvement of the two people of interest remain matters for the ongoing investigation.

Disclaimer: This report reflects information publicly confirmed by authorities in their November 1, 2026 updates. The deceased student’s identity had not been released in the initial announcement. Persons of interest have not been established as guilty of any offence. Further details, including victim identification, arrests and investigative findings, should be confirmed through official updates. The privacy of the victims’ families and the injured student should be respected.