Boulder Halloween Party Ends in Fatal Shooting of Two CU Students

Key points

• One victim died at Boulder Community Hospital; the other remains in critical condition.
• The shooting occurred around 11:30 p.m. at a home in the 700 block of Marine Street.
• Police had previously issued a nuisance ticket and removed one intoxicated person from the party.
• Investigators identified two persons of interest from doorbell camera footage.
• This is the first homicide recorded in Boulder for 2026.

Background

Boulder has not experienced a homicide this year prior to this incident. The party was registered through a joint program between CU Boulder and the Boulder Police Department, allowing organizers to receive warnings for noise complaints. University officials confirmed they were unaware of any formal affiliation between the party and a fraternity or other university organization.

How outlets are covering it

CBS News and The Boulder Reporting Lab agree on the timeline: police shut down the party around 10 p.m. after a noise complaint, and the shooting occurred approximately 90 minutes later. Both outlets report that police are seeking two individuals seen on video but have not officially labeled them as suspects. The Boulder Reporting Lab notes that police have not disclosed what prompted the confrontation or whether the individuals attempting to enter the home had attended the party earlier. CBS News emphasizes the description of the two persons of interest, including clothing details, while The Boulder Reporting Lab highlights the emotional impact on the community and the efforts to support affected students.

Why it matters

The incident marks the first homicide in Boulder in 2026, raising concerns about public safety in the University Hill neighborhood. It also highlights the challenges of managing large, registered student parties and the potential for violence when crowds disperse or attempt to re-enter venues. The case underscores the importance of community cooperation in identifying suspects and the need for increased police presence in areas with high student populations.

What to watch

Police are continuing to interview witnesses and review video evidence. They are urging the public to submit photos or videos from the party or the shooting scene. Investigators expect to provide further updates as the case progresses. Increased patrols are planned for the University Hill area in the coming days.