LOS ANGELES—Classes at University of California–Los Angeles (UCLA) were taught remotely Feb. 1 in response to a video by a former lecturer referencing a mass shooting and threatening philosophy department members, the university announced. Matthew Harris, a former postdoctoral fellow, posted the video and an 800-page manifesto making “specific threats” to people in the university’s philosophy department, resulting in the school’s decision Monday to cancel in-person classes. “Out-of-state law enforcement has confirmed the person who made threats to UCLA is under observation & not in CA,” Steve Ritea, UCLA’s spokesman, said in a statement to City News Service on Tuesday morning. “Classes will remain remote today.” Philosophy students received an email Monday stating that Harris had made specific threats to people in the department and posted a video on social media titled “UCLA Philosophy Mass Shooting,” the Los Angeles Times reported. “In light of this, we will continue to have …