Mario Woods' mom: 'I will never let you forget his name'

Mario Woods' mother gave an emotional speech Tuesday addressing San Francisco District Attorney George Gascon's decision not to charge the officers involved in a shooting that left her son dead.

"I heard them say they had to stop Mario, no they didn't because they just went ballistic with the gun when our babies were coming home from school," Gwen Woods said during a press conference outside San Francisco's City Hall. "I love that kid and he's worth me fighting for, he was the best of me."

During the press conference, she referred to the officers involved in the deadly shooting as "beasts" and later added that she will continue to fight for her son saying, "I will never let you forget his name, Mario Woods, Mario Woods, Mario Woods" Gwen said.

The families of two men killed in separate San Francisco officer-involved shootings said they are seeking justice.

RELATED: DA says SF cops won't be charged in fatal Woods, Gongora shootings

Last Thursday, San Francisco District Attorney George Gascon announced that the officers involved in two separate deadly shootings will not face charges because under the law, no crime was committed.

The incidents were the 2015 shooting of Mario Woods and the 2016 shooting of Luis Gongora.
In a December 2, 2015 cellphone video, you can hear a woman yelling for 26-year-old Woods to put down the knife he was holding. Police said the knife had been used by Woods earlier against another man. Despite police shooting beanbag rounds at Woods, he never dropped it and police then fired 26 rounds.

And in the April 7, 2016 shooting, a witness said Luis Gongora Pat, 45, was holding a knife when confronted by police. A home security video doesn't show the moment Gongora was shot, but you can see when police arrived and you can hear how it unfolded only 30 seconds later with police shooting and killing Gongora.

RELATED: Video shows fatal police shooting in San Francisco

An anonymous viewer gave ABC7 News video that captured audio of the deadly encounter in San Francisco's Mission District.