A sheriff’s deputy in California has died after a gang member allegedly punched him the head — and the deadly blow was caught on surveillance camera footage.

Fox News reports that San Bernardino County Sheriff’s Deputy Larry Falce died on Tuesday after a minor traffic collision with a man police are calling a “career criminal.” Following the minor accident, the drivers got out of their cars and spoke for less than a minute before Alonzo Leron Smith, 30, allegedly punched him in the face.

Falce, who was off duty at the time, never regained consciousness and was pronounced dead two days later,

Following the altercation, which was caught on surveillance camera footage, the suspect allegedly tried to flee in his car, but a witness stopped him by ramming the suspect’s car with his own SUV.

“He jumped in his car and tried to leave, so I rammed him once and then I backed up and he was able to go around my actual truck, so I rammed him a second time in the back of his car and spun him out across the street and into a…tree,” the witness reportedly told KTLA.

The suspect was eventually apprehended and is now facing murder charges.

In a press conference, San Bernardino County District Attorney Michael Ramos said Smith had spent time in prison for drug- and gang-related crimes.

“This person needs to spend the rest of his life in prison,” Ramos said.

Falce, 70, has been with the San Bernardino Sheriff’s Department since 1981.

[Feature image: San Bernardino Police Department/Larry Falce]