Zachary Castaneda is knife-wielding assailant Gang Member filmed inside an insurance agency in Garden Grove, California violently stabing a woman

Horrific video shows knife-wielding assailant violently stab woman, 54, in insurance agency during 'random' rampage in California that killed four people as police say suspect is a 'violent' gang member who had been in prison 14 times and 'should never have been let out'

Zachary Castaneda is knife-wielding assailant Gang Member filmed inside an insurance agency in Garden Grove, California violently stabing a woman
Zachary Castaneda

Police in Southern California released horrific surveillance footage on Thursday showing an alleged 33-year-old gang member violently stabbing a woman at an insurance agency during a gruesome crime spree in which four people were killed and two others wounded.

The video’s time stamp shows that at around 6pm on Wednesday, a man in a dark-colored hooded sweatshirt, blue jeans, and blue t-shirt underneath walked into the Best One insurance agency in Garden Grove, California.

The man initially appears to be carrying a small over-the-shoulder knapsack.

He then approaches the front desk, where a woman is sitting near a computer.

Police release video of violent knife assault inside an insurance agency in Garden Grove, California on Wednesday

A man in a hooded sweater is seen violently stabbing an employee before running out with a fistful of cash

Police say the assailant in the video is Zachary Castaneda, 33, a gang member with a violent criminal record

He was booked into Orange County jail on suspicion of murder, attempted murder, armed robbery and burglary, according to police  

Police said Castaneda went on a two-hour 'random' crime spree in California and Santa Ana on Wednesday, killing four people and injuring two  others

He 'could have killed many other people' had not been arrested, police said  

Castaneda 'remained violent' with police after he was arrested, despite remaining in his restraints, and did not tell police what his motive was  
He is being held on $1 million bail, according to California authorities

Police said the woman in the video is a 54-year-old employee who was stabbed several times and was expected to survive.

The woman 'was very brave,' police said. 'She fought as best she could.'

An alarm company saw the robbery on a live television feed and called police.

The man fled with cash and also robbed a check-cashing business next door, authorities said.

The footage was released on Facebook by the Garden Grove Police Department.

Authorities say the man in the video is Zachary Castaneda, a gang member with a violent criminal record who has been to prison 14 times since June 2016.

Castaneda allegedly robbed the insurance agency and stabbed the woman as part of a frantic, bloody two-hour crime spree that left four people dead and two others wounded.

Castaneda 'could have injured or killed many other people' had he not been arrested Wednesday while carrying out attacks and robberies during the two-hour wave of violence that began in Garden Grove, the city's police Chief Tom DaRe said.

It wasn't immediately known if Castaneda, 33, had a lawyer who could speak on his behalf. He was scheduled to be arraigned Friday.

Castaneda was taken into custody when he walked out of a convenience store in the neighboring city of Santa Ana, dropping a knife and a gun he had taken from a security guard he had just killed, police said. The suspect was covered in blood, DaRe said.