NBC Los Angeles has reported.
Sarkar is also believed to have killed a woman in Minnesota, where he had a residence and legally purchased two semiautomatic pistols — one of which was used to kill 39-year-old UCLA professor William Klug on Wednesday morning.
The identity of the woman killed in Minnesota has not been released, but a note left at Sarkar's residence there apparently led the police to her home, LAPD chief Charlie Beck said in a news conference on Thursday.
Sarkar, a former doctoral student at UCLA, apparently drove from Minnesota to Los Angeles in a 2003 Nissan Sentra that has not yet been found.
The police say Sarkar had a "kill list" that included Klug — whom Sarkar accused of stealing a computer programming code he had written — the Minnesota woman, and another UCLA professor. The second UCLA professor is safe.
"William Klug, UCLA professor is not the kind of person when you think of a professor. He is a very sick person. I urge every new student coming to UCLA to stay away from this guy," Sarkar wrote on social media months ago, according to the Los Angeles Times.
Via ABC7UCLA professor William Klug was killed Wednesday in what the police are calling a murder-suicide.
"He made me really sick. Your enemy is my enemy. But your friend can do a lot more harm. Be careful about whom you trust."
Sarkar apparently thought Klug had given Sarkar's computer code to someone else; a source told the Times that was an "absolutely psychotic" accusation.
Klug, a father of two, taught mechanical and aerospace engineering at the school. Sarkar was one of two teaching assistants in MAE: 101: Statistics and Strength of Materials, a mechanical and aerospace engineering course, the Times reported, citing a syllabus of the course. Klug also advised Sarkar on his doctoral dissertation in 2014.
Sarkar got his master's degree at Stanford before enrolling at UCLA, the Times reported, citing Sarkar's LinkedIn profile. The LinkedIn page now appears to have been taken down.
Classes resumed at UCLA on Thursday — except for inside the Engineering IV building, which is still a crime scene — after the school was on lockdown for most of the day Wednesday. Hundreds of police officers responded to reports of a shooting at about 10 a.m. PT. The FBI and the Bureau of Alcohol, Tobacco, Firearms, and Explosives were also at the scene.
"Our hearts are heavy this evening as our campus family mourns the sudden and tragic deaths of two people on our campus earlier today," UCLA's chancellor, Gene Block, said in a statement on Wednesday.
Also on Wednesday, Scott Waugh, UCLA's executive vice chancellor and provost, said authorities would be "reviewing the locks on the doors among other measures ... to ensure our campus is as safe as possible."
Waugh was referring to the measures students and faculty apparently took to secure the doors while the campus was on lockdown.
Photos on social media showed people using belts, desks, chairs, and computer equipment to secure classroom doors that reportedly were not equipped with locks.
"On any given day, there are between 60 and 70 thousand people on campus," Waugh said, specifying the need to assess the school's overall safety measures.
