Kevin Doherty, 46, was charged Monday with Use of a Firearm in the Commission of a Felony and two counts of Malicious Wounding, according to a press release from the Arlington, Va, Co. police department.

The Washington Post provided more details about the attack, which was the second to befall Burkman over the past several months. An unidentified assailant attacked Burkman with pepper spray at his home in January.

Burkman was shot and run over March 13 at a Rosslyn Marriott hotel's parking garage. Burkman was there to retrieve what he thought were documents from an FBI whistleblower.

Doherty worked for Burkman on the Rich investigation until July 2017. Rich, a data analyst at the DNC, was murdered in Washington, D.C., on July 10, 2016, under mysterious circumstances. Doherty was an investigator on Burkman's Profiling Project, the group he formed to solve the Rich case.