After reviewing the emails, UCLA police located the perpetrator, identified as Matthew Christopher Harris, 31, in Colorado, Boulder Police Chief Maris Harold said Tuesday.

“In reviewing parts of the manifesto, we identified thousands of references to violence, stating such things as ‘murder, death, murder, shootings, bombs, Boulder schoolyard massacre’ and phrases such as ‘burn and attack Boulder’ outside the university,” Harold said.

“The level of violence we saw in the manifesto was obviously so alarming,” Harold said. “I can tell you it was very violent, very disturbing.”

The Boulder PD SWAT team was activated shortly before 8 a.m. local time and nearby schools, homes and businesses were evacuated while the suspect’s apartment was surrounded.

A crisis response team and negotiators contacted Harris by phone and after speaking to him several times very briefly, took him into custody without incident, Harold said. It’s unclear if Harris has an attorney.

“Today was a scary day for the people of Boulder,” said Boulder District Attorney Michael Dougherty.

Harris was being held on state charges, but Dougherty’s office later said the suspect was being transferred to federal custody beginning Tuesday evening and is expected to face federal charges because “the alleged threats were made to across state lines and the victims are in California.”

Harris attempted to buy a gun in early November but was turned down, Harold said.

“Based on a protective order issued in the State of California, there was a nationwide database that included a provision that he was not allowed to purchase or possess a firearm. On this basis, we believe at this point – and again, this is early in the investigation – was the basis for the denial when he attempted to purchase the gun,” Finegan said.

Boulder Police have already made contact with the suspect last October and are still investigating the incident. No charges have been filed, Harold said.

Threats allegedly made against UCLA staff and students

UCLA moved classes Tuesday as news of the threats emerged and will resume in-person classes Wednesday, according to a memo sent to students.

“We are greatly relieved to report that Colorado law enforcement has arrested the individual who made threats against certain members of our UCLA community yesterday,” Deputy Vice Chancellor Suzanne L. Seplow wrote in a statement. message to students.

According to Los Angeles Times report, Harris sent e-mail threats to students and faculty members. Leaders of the philosophy department at the school, where the former professor had worked, warned students and professors about threats to the department, according to departmental emails to students and professors that The Times obtained.
The posts included a link to his YouTube video and a manifesto outlining the threats, UCLA reported. student newspaper, the Daily Bruin, citing communications from the philosophy department to students and faculty. It was unclear whether the Harris sent direct threats of mass fire, the newspaper said.

“I want to inform you that the UCLA Police Department is aware of a concerning email and post sent to certain members of the UCLA community today and we are actively engaged with law enforcement. the order and federal agencies out of state at this time. We’ll update our Bruin community later tonight as we learn more,” the Vice Chancellor said. ‘UCLA, Michael Beck, Monday night in an Instagram post.

Los Angeles Police Chief Michel Moore said police had contact with the person last spring and that it involved the Mental Assessment Unit.

UCLA’s shift to distance learning came on the same day that several historically black colleges and universities had to close or postpone classes due to bomb threats. Tuesday was the first day of Black History Month.
Monday was the first day UCLA students were on campus for in-person learning after the Omicron coronavirus surge forced the university to move classes online.

CNN’s Steve Almasy and Jennifer Feldman contributed to this report.