From [HERE] and [HERE] Video shows Los Angeles deputies allegedly beating a Black security guard and putting a gun to the back of his head in front of a horrified crowd of people.

The 90-second clip was posted on Twitter by Cerise Castle, an investigative journalist based in Los Angeles, on Tuesday. She also obtained video from a nearby business that shows the thug cops pulling into the parking lot, jumped out and attacked Blake Anderson as he walked with a friend. Blake has since lost his eyesight a result of this brutal beating.

According to Castle, two deputies with the Los Angeles County Sheriff's Department arrived at the Good Batch Lounge in Inglewood on Sunday morning and began beating a man she identified as Blake Anderson.

"This is Blake Anderson. He's a security guard at the Good Batch Lounge. Early Sunday morning, deputy Rodriguez and his partner pulled up and began beating Blake," Castle wrote in a tweet alongside the clip.

"He's since lost vision in his eye. He's [currently] being charged with assault on a police office for this."

The Los Angeles County Sheriff's Department, the Los Angeles Police Department and the Inglewood Police Department have all been contacted for comment.

As the video begins, one deputy has Anderson in a headlock while the other repeatedly hits him.

Among the crowd of people witnessing the incident, a woman can be seen yelling at the deputies: "He's security here."

As one woman repeatedly yells that Anderson "works here," one of the deputies is seen pulling the gun out of his holster and holding it to Anderson's back. The other restrains him.

"Don't resist, they're a gang!" another person at the scene is heard saying. Earlier this year, the Los Angeles County Civilian Oversight Commission announced an investigation into "the deputy gangs that have plagued the Los Angeles County Sheriff's Department for decades."

Seconds later, the deputy points the gun to the back of Anderson's head and uses his other hand to hold the civilian's head down.

According to Castle, at this point deputy said to Anderson: "I'm going to blow your f**king brains out."

In the video, the woman filming can be heard pleading with Anderson not to do anything that could risk his life.

"Blake, no. Blake, no. Blake. Don't resist, Blake. No no no. Do what you gotta do, Blake. Come on," the person is heard saying, as one deputy punches Anderson in the head and slams his head into the ground.

"Please Blake, no. Don't fight back," the person adds, as the deputies force Anderson's arms behind his back.

One deputy pins him down with a knee on his shoulder area while the other deputy places him in handcuffs.

"He did nothing. He was walking with me. He did nothing," the person filming says. "Blake, do not let them do anything, Blake. Blake, let them take you bro."

According to a GoFundMe page set up by Anderson's sister Bailey Anderson to raise funds for medical and legal costs, multiple witnesses said Anderson was speaking with a customer when the deputies "got out of their vehicle and proceeded to ambush him with no probable cause."

"No name, source of identification, or justification for arrest was asked for before immediately slamming his head into a glass window," his sister wrote on the page.

Anderson had been recovering from a ruptured right eye and "finally showing signs of his sight returning" prior to Sunday's incident, she wrote.

"After being slammed into the window, Blake attempted to let the officers know about the current condition of his eye to no avail.

"While on the ground, Officer Rodriguez repeatedly struck him in the head with his firearm, punched him in the face, pressed his gun into the back of his head, continuously slammed his head into the concrete, and stomped on his head. All while his partner held Blake down."

Anderson sustained multiple injuries, including a dislocated shoulder, his sister said. "Worst of all, the sight improvement in his right eye has now deteriorated. Doctors say the eye must be cosmetically removed, and a prosthetic eye should be inserted."

She described her brother "one of the most incredible people to be around" and said he is expecting a baby with his long-time girlfriend.

"He was at work trying to provide for his family, and this tragic incident happened," she added.

Bailey Anderson has been contacted for comment.