The suspected shooter of two National Guard members in Washington, D.C., had “not been functional as a person, father and provider” for years, a series of emails revealed in a new report details.

Rahmanullah Lakanwal has been charged with first-degree murder in the shooting death of Sarah Beckstrom. Guard member Andrew Wolfe was also critically injured in the attack. Both belonged to the West Virginia National Guard. The Associated Press report on the emails comes as Homeland Security Secretary Kristi Noem and Attorney General Pam Bondi have said the suspect was “radicalized” in the United States.