From [HERE] and [MORE] A white police officer was legally justified in shooting dead an unarmed black man in El Cajon, California, in September, and will not be charged criminally, the county's top prosecutor said on Tuesday.

Ugandan refugee Alfred Olango was shot four times by officer Richard Gonsalves in the parking lot of a taco stand in the San Diego suburb of El Cajon after pulling a metallic vaping device from his pocket and pointing it at police. He was shot several times by police responding to a call for emergency psychiatric aid. The 

The incident, the latest in a string of shootings of mostly unarmed black men by police sparked days of protests in El Cajon and around San Diego County and calls by activists for a federal investigation.

"After carefully reviewing the facts, the evidence and the law, we’ve determined the officer’s use of deadly force was reasonable under the circumstances and he bears no criminal liability for his actions," San Diego County District Attorney Bonnie Dumanis told reporters at an afternoon press conference.

Dumanis said the shooting was legally justified because it was reasonable to conclude that Gonsalves, a 21-year veteran of the El Cajon Police Department, believed his life was in danger from Olango.

Gonsalves and a second officer, who fired a Taser device at Olango, were both placed on administrative leave during an investigation into the incident by the district attorney's office.

Days before the incident, one of Olango's longtime childhood friends died. On the day of the incident, Olango's sister noticed strange behavior from him and called police three times asking for immediate help. A 5150 (involuntary psychiatric hold) request for a psychiatric emergency response team (PERT) was placed. Fifty minutes after the first call, at least two non-PERT officers arrived on scene.

Police have said Olango ignored commands to take his hand out of his pocket before pulling out an object later determined to be a vaping device used to inhale nicotine. Olango assumed a "shooting stance" and pointed the device, police said. No gun was found at the scene.