Michael Fanone , a D.C. Metropolitan Police officer who was beaten and electroshocked by Donald Trump supporters during the Jan. 6 insurrection at the U.S. Capitol and who went on to confront lawmakers about the deadly attack has resigned from the police force.

Fanone, 41, submitted his resignation Monday, three months after he returned to duty having suffered physical and emotional injuries from the riot, The Washington Post reported.

The 20-year police veteran will join CNN as an on-air contributor to discuss law enforcement issues, a CNN representative confirmed to HuffPost.

Fanone made frequent media appearances in the months after the Capitol attack, denouncing the people who participated in it and the lawmakers who have tried to minimize its seriousness. He told the Post his candor did not sit well with fellow officers.