Police in the city 30 miles southeast of Los Angeles broke the front passenger-side window and blasted the man with water. "We felt this guy was going to light himself on fire or blow the car up," Lopez said.
Video aired by KABC-TV (http://bit.ly/2mDxpTR ) showed that moments after the water was sprayed and police broke additional windows, the shirtless man climbed out head-first through the driver's-side window.
He stumbled to the ground before jumping to his feet. Officers tried to arrest him when he reached behind his back and pulled out a knife, Lopez said. In the video, the man was partially blocked from view by another vehicle after he climbed out and struggled with officers. No weapon is seen but a voice is heard yelling "knife" moments before two shots rang out.
A non-lethal round of rubber projectiles was ineffective so officers used lethal force, Lopez said. The man, identified as Michael Anthony Perez, 33, of Orange was hit by a single bullet and pronounced dead at a hospital, police said.
"We try to use less lethal rounds, but it is not always possible," Lopez said. Police said Perez had a criminal record that included weapons and drugs violations. Online court listings show convictions for charges including drug possession and possession of drug paraphernalia.
Thorsen said an active warrant was out in connection with the minivan. The man was pulled over for a broken tail light and the incident played out over a 20- to 30-minute span near a 24-hour laundry and other businesses in a surrounding strip mall, police said.
"I had never seen anything like that," said Fabian Huerta, who watched with surprise as police started spraying water into the van. "I thought he was going to surrender." Huerta, who works cleaning businesses at the strip mall, said in Spanish that he saw an officer grab the suspect by the hand before he heard gunshots.
The shooting was being investigated by the Orange County district attorney's office. It was the second fatal shooting by police in the county in a four-day period. On Thursday, police in Huntington Beach shot and killed a man who a witness said was chasing children with what looked like a broken wine bottle at a sports complex.
Associated Press writer Christopher Weber in Los Angeles contributed to this report.