A Cal State Fullerton staffer was arrested in the fatal stabbing of his co-worker after spending two days on the run, police said Thursday.

Chuyen Vo, 51, was cuffed at his home in Huntington Beach Wednesday at about 10:15 p.m., Fullerton Police Chief Robert Dunn said in a press conference.

Authorities say Vo killed Steven Shek Keung Chan, a 57-year-old administrator at the college, who was found dead inside his car in a campus parking lot Monday, with stab wounds all over his body.

Surveillance video caught Vo running from the parking lot and he was later seen fleeing in a black sedan, police said.

A backpack cops believe belonged to Vo was found at the scene, containing a blade and items that could be used in a kidnapping, including zip ties and wigs — as well as an incendiary device.

Police said Vo injured his hands during the attack and may have left behind DNA evidence.

The victim and his alleged attacker were co-workers in the university’s division overseeing International Education.

Ellen Treanor, a CSUF associate vice president, told KTLA it’s a big division and it’s possible Chan and Vo didn’t even work together.

She wasn’t aware of any tension between study abroad administrators, she said.

“Of all the individuals that I talked to in that division, there didn’t seem to be any concerns at all that anybody would ever hurt Steve at all,” Treanor told the outlet.

“Not a single person said there were problems.”

Police are still working to determine a motive.

The slaying occurred on the first day of the academic year, but no students were on campus because weekend classes don’t start until Saturday.

Weekday classes begin on Monday, the university said.