At least four people allegedly mugged a decorated ex Marine at a McDonald's outlet in Washington D.C. last week.

Authorities were still working to identify the culprits Wednesday (Feb 17).

WJLA - ABC's local affiliate - reported that they taunted him before physically attacking him.

The alleged victim Christopher Marquez, 30, said he was eating in the back corner in the McDonald's restaurant on Friday. He told the Washington Post  that a group of teenagers came near his table and crowded around him.

He claimed they asked him if he "believed that black lives matter."

Marquez reportedly ignored them, at which point they started calling him racist.

When Marquez got up to leave the McDonald's joint, the alleged attackers knocked him unconscious by a blow to his head. When he returned to consciousness, his trousers were torn and his wallet was gone.

The missing wallet reportedly had $400 in cash, three credit cards and VA medical card among other things. Marquez could not get treated at the VA medical center because of his missing ID.

According to The Daily Caller, Marquez took a taxi back to his apartment where building employees called the cops. He was then treated at George Washington University Hospital for head trauma.

"I just want them to get caught, especially if they're doing this to other people," he added. "If they've done it before, they're going to do it again and hopefully they don't hurt or kill someone next time," Marquez told WJLA.

Fox News was told by the D.C. Metropolitan Police on Wednesday (Feb 17) that the work of identifying the four people in the video is ongoing.

Marquez, who served in the Marine Corps from 2003 till 2011. In November 2004, he was granted the Bronze Star with combat distinguishing device for valor in the battle of Fallujah, Iraq.

Marquez is also one of two Marines shown carrying then-1st Sgt. Bradley Kasal out of the so named "Hell House" in a famous photograph.

Marquez clarified his position on racism to The Daily Caller, saying he fought for the freedom of all Americans and served with people from a variety of diverse backgrounds, races, religions and ethnicities.