California ? A 47-year-old engineer arrested on suspicion of fatally shooting three of his co-workers had been laid off hours earlier and returned to the office to ask for a meeting with the victims, police said Saturday.

Jing Hua Wu was arrested Saturday, a day after the shootings at an office complex in Santa Clara, west of San Jose. A manhunt ended at an intersection in his home city of Mountain View, and he will be booked into jail on three counts of murder, said Santa Clara Police Lt. Mike Sellers.

Wu had worked at the Silicon Valley high-tech firm SiPort Inc. as a product test engineer until he was let go on Friday morning. Police said he returned sometime after 3 p.m. Friday.

“He requested a meeting with several company officials,” said Santa Clara Police Chief Stephen Lodge. “It was during this meeting that Jing Wu took out a 9 mm handgun and shot and killed all three officials.”

Killed were 56-year-old Sid Agrawal, SiPort’s chief executive officer; Brian Pugh, 47, vice president of operations; and Marilyn Lewis, 67, head of human resources.

Wu, who is married and has twin sons, was not armed when he was arrested, and officers did not find a gun in his vehicle, police said.