The Los Angeles Police Department said on Sunday afternoon three officers were flagged down about 1 p.m. by witnesses who told them a man with a knife was threatening shoppers.
Police said they ordered Jamines to drop the weapon. They said he lunged at the officers and one of them opened fire and killed him.
"We know for a fact as well that before officers actually got to the scene here to conduct the preliminary investigation, that the suspect had already threatened and attempted to cut several other people," said Capt. Rigo Romero of the Los Angeles Police Department.
People in the community were very upset with the police department's actions.
"That criminal who killed that innocent person should rot in jail," said protester Juan Flores.
Residents said Jamines was drunk and police didn't need to shoot. Many in the crowd want to know why the officers did not opt to use non-lethal force instead.
"There's no need for that when he could've pepper spray him. You got a baton for that, you're trained for that. You're not train to kill a person for just being intoxicated," said protester Luis Velasquez.
"It becomes a judgment call in terms of how you react to the situation because you do have other force options, but sometimes based on the actions of the individual, your options become very limited," said Romero.
Donation boxes to help the Jamines family were set up at the intersection. The counsel general of Guatemala said that the consulate will be helping with the cost of trying to get Jamines' body back to his home country.
The officer involved in the shooting was placed on leave. Authorities said it is standard procedure during the investigation.