Boulder police said Omar Perez, 18, of Thornton, was arrested early Monday in the Marine Street shooting that killed a 19-year-old CU student.

Charged, in the Nov. 2 release, is not a verdict. Extreme indifference on all three counts is the department's charge line. First-degree murder, first-degree assault, and attempted murder, without those words, is what 9NEWS printed. Just after 8 a.m. and no bond are CBS Colorado. Early this morning is the release. The department said his photograph will not be released. The two students are still not named.

The Boulder Police Department's Nov. 2, 2026 release, by Dionne Waugh, said detectives identified the man suspected of shooting and killing a University of Colorado Boulder student as Omar Perez, 18, of Thornton. It said he was arrested early that morning and charged with murder in the first degree-extreme indifference, assault in the first degree-extreme indifference, and attempted murder in the first degree-extreme indifference. It said he is not a C.U. student. It said his photo will not be released at this time because of the ongoing investigation. It said the second victim remains hospitalized. It said the families of the two victims are requesting privacy and do not wish to speak to the media. It said that although additional charges are possible for other individuals involved in this incident, detectives believe this suspect is the only shooter. It reported Chief Steve Redfearn said community tips led to the suspect's identity within 24 hours, and that the department coordinated with Thornton Police, Westminster Police, and the Adams County Sheriff's Office to take him into custody. It repeated the Oct. 31 account: approximately 11:28 p.m., the 700 block of Marine Street, two 19-year-old men, one of whom died early Sunday, Nov. 1, both University of Colorado Boulder students, and the Boulder County Coroner's Office still to release the name of the student who died. Hospitalized, for the second victim on Nov. 2, and critical condition, in the Nov. 1 release, are not the same condition. The Nov. 2 release does not print a jail, a bond, or a clock more specific than early this morning. It does not name either student. It closes with a standard line about charges and a defendant. That closing line is not printed here. The paragraphs below are the Nov. 1 release and the Sunday coverage. They describe two unnamed persons of interest. They are not this arrest.

9NEWS, by Darren Whitehead, Steve Staeger, and Jaleesa Irizarry, updated at 12:08 p.m. MST on Nov. 2, 2026, reported that an 18-year-old man has been arrested, and that Omar Perez of Thornton has been booked into the Boulder County Jail on charges of first-degree murder, first-degree assault, and attempted murder, according to Boulder police. The age 18 is in that lede. It is not repeated next to the name. The release prints Omar Perez, 18, of Thornton, as one identification. It reported police said additional charges are possible for other people involved, but investigators believe this suspect is the only shooter, and that Perez is not a CU student. Booked into the Boulder County Jail is 9NEWS. It is not in the Nov. 2 release. First-degree murder, first-degree assault, and attempted murder, in 9NEWS, do not include the words extreme indifference. The release prints extreme indifference on each of the three counts and hyphenates them as murder in the first degree-extreme indifference, assault in the first degree-extreme indifference, and attempted murder in the first degree-extreme indifference. C.U., in the release, and CU, in 9NEWS, are not the same printed form. 9NEWS does not print a time of arrest, a bond, or the new Redfearn statement. It reported that in an update after the arrest, police are still asking for the public's help "to identify other individuals involved in this crime." CBS Colorado, by Jennifer McRae, updated Nov. 2, 2026, at 12:19 p.m. MST, reported officers arrested Omar Perez just after 8 a.m. Monday. It reported Perez, 18, of Thornton, is facing several charges, including first-degree murder with extreme indifference, first-degree attempted murder, assault, and criminal attempt. It reported he remained in custody on no bond as of Monday afternoon, and that he is not a student at the University of Colorado. Just after 8 a.m. is CBS Colorado. Early this morning is the release. Those are not the same clock. Criminal attempt, as its own item in the CBS list, is not a fourth count in the release. First-degree attempted murder, in CBS Colorado, and attempted murder in the first degree-extreme indifference, in the release, are not the same count line. Assault, in CBS Colorado, does not print first degree or extreme indifference. No bond is CBS Colorado. The release and the 9NEWS update do not print a bond. CBS Colorado reported that although additional charges are possible for others involved, detectives believe Perez is the only shooter. Perez, in that sentence, and this suspect, in the release, are not the same wording. It reported the second victim remained hospitalized as of Monday, and it printed the Redfearn statement naming Thornton Police, Westminster Police, and the Adams County Sheriff's Office. Steve, on the Nov. 2 release, and Stephen, in the CBS paragraph about the party, are the spelling difference already in the Nov. 1 accounts. Neither student is named on the Nov. 2 release, the 9NEWS update, or the CBS Colorado update.

The Boulder Police Department's Nov. 1, 2026 release said that at approximately 11:28 p.m. on Saturday, Oct. 31, officers responded to reports of a shooting at a home in the 700 block of Marine Street, arrived in less than two minutes, and found two 19-year-old men with gunshot wounds. Both were University of Colorado Boulder students. Both were taken to the hospital. One died of his injuries early Sunday morning. The second remained in critical condition. The release said the Boulder County Coroner's Office will release the identity of the student who died. It does not name the hospital. 9NEWS, Denver7, CBS Colorado, and the Daily Mail named Boulder Community Hospital. 9NEWS reported Chief Stephen Redfearn said paramedics took both there around 11:40 p.m. Early Sunday morning is the death in the release. Around 11:40 p.m. is a transport time. Those are not the same clock. The Daily Mail, by Lauren Acton-Taylor, updated at 3:35 p.m. EDT on Nov. 1, reported he died of his injuries on Sunday morning. 9NEWS's page also states that police said the shooting happened near 7th and Marine streets just after midnight Sunday. Just after midnight and approximately 11:28 p.m. are not the same time. The same 9NEWS story reported Redfearn said reports of gunfire inside the home began just before 11:30 p.m. Denver7 reported calls of a shooting just before 11:30 p.m. CBS Colorado, by Logan Smith, reported 911 calls around 11:30 p.m., after officers had left. Just before 11:30, around 11:30, and 11:28 are not the same minute. The release called the scene University Hill. Denver7 called it the University Hill neighborhood. CBS called it The Hill, near 7th and Marine, about six blocks west of campus, and a caption placed a patrol cruiser in front of 705 Marine Street. Passersby told CBS that home hosted the party. The 700 block is the department's address. 705 Marine Street is the caption. 9NEWS described the house as just west of the University Hill neighborhood. On University Hill, and just west of it, are not the same place.

The release said officers had already been to the home Saturday for a noise complaint at a large party, cited the people who live there for a nuisance party, and ended the party. Hundreds of people left. A smaller group stayed. The release does not say the party was registered. CBS reported Redfearn said the organizers had registered it in advance with the university, that there was a live band and hundreds of people, and that the noise complaint came in just before 10 p.m. The Daily Mail reported that registration account and spelled the chief Steve Redfearn, which is the name on the release. 9NEWS, Denver7, and CBS spelled him Stephen. Steve and Stephen are not the same printed name. 9NEWS, updated at 6:45 p.m. MST, reported the party was registered with the department's party registration program, that dispatchers contacted the hosts just before 10 p.m. about a live band, and that officers arrived minutes later, issued a citation, and placed a severely intoxicated person on an emergency hold. Denver7 quoted him that at 9:56 p.m. dispatch called the home because the party had been registered, and it described the registry as a system set up by the university and the police department. Registered with the university, registered with the police party program, and registered with a joint system are not the same account. 9:56 p.m. and just before 10 p.m. are not the same time. CBS reported one highly intoxicated person was taken into custody, that the organizers were ticketed, and that Redfearn said a core group, including the renters, remained. An emergency hold and custody are not the same status. People who live there, hosts, organizers, and renters are not the same people. The department release does not mention an intoxicated person.

The release said detectives believe a group later tried to force their way into the house, and that shortly after that scuffle shots were fired inside, striking both students. CBS quoted Redfearn that the shooting happened as "a group tried to force its way into the home to join the party." The Daily Mail printed that account in a sentence beginning "Detective believe" and attributed it to investigators. 9NEWS did not print the force-entry sentence. It reported a neighbor who asked not to be identified said he saw a scuffle on the front porch, that the front door slammed, and that he heard three shots. Inside the home, and on the front porch, are not the same place. Three shots is what that neighbor told 9NEWS. No police account used here gives a number of shots. The release said detectives had interviewed approximately 20 witnesses. 9NEWS said 20. Denver7 said around 20. CBS said Redfearn said investigators were interviewing 20. Approximately 20, 20, and were interviewing 20 are not the same finished count. The release asked the public to help identify two persons of interest: a man with short, dark hair and facial hair, in a red hooded sweatshirt under a black jacket, and a man with short, dark hair, in a black shirt with Art the Clown on it and a silver-colored chain necklace. CBS printed those descriptions and reported a spokesperson said the images were recorded immediately before the shooting. Denver7 printed the red hoodie and a black T-shirt with an Art the Clown design and did not print the chain. The Daily Mail wrote that the shirt showed Art the Clown from the Terrifier franchise. Terrifier is the Mail's word. It is not in the release. 9NEWS reported the footage appears to show the two men entering a home and then quickly leaving. Denver7 reported doorbell video of them leaving and going back inside. The Mail reported ring-camera footage of them leaving with a group, then turning around and going back in. Entering and then leaving, and leaving and then re-entering, are not the same sequence. CBS reported that speakers at the news conference declined to call the two men suspects. It also reported the department said on social media that the suspects were believed to have left the city by 2 a.m., when residents could return home. The Mail printed that suspects line. A person of interest, and a suspect believed to have left the city, are not the same status. Neither man is named. 9NEWS reported Boulder County District Attorney Michael Dougherty said it is unclear whether the persons of interest are CU students. CBS called him the 20th Judicial District Attorney and quoted him that investigators are very likely to solve the crime and will hold the shooter or shooters accountable. Very likely is a prediction. It is not an arrest. 9NEWS, Denver7, and CBS reported that on Sunday afternoon police released more images of other people they want to speak with. No page used here names those people or gives their ages.

CBS reported Redfearn said this is the first homicide in Boulder this year. Denver7 printed that it is Boulder's first homicide in 2026 and did not put that sentence in quotation marks. The release does not say it. 9NEWS quoted him that the city does not regularly have gun violence and that police will keep a larger presence around University Hill. CBS reported he and University of Colorado Boulder Police Chief Ashley Griffin said both departments would add patrols. The release quoted him: "My heart breaks for the victims and for everyone impacted by this senseless violence." It asked anyone with information to call dispatch at 303-441-3333 and give case 26-10148. CBS printed the number as 303 411-333. That is not the number on the release. The release closes with a standard line about charges and a defendant. The release does not name a charge, and it does not name a defendant. The two students are not named. A shirt description is not an identification. All defendants are presumed innocent until proven guilty in a court of law.