A man in Washington, D.C. was shot and killed while leaving an anti-violence meeting, NBC Washington reported.

Clarence Venable, 40, was shot around 2 p.m. after exiting a meeting of the group Cure the Streets, who bill themselves as “violence interrupters,” according to police.

So far a motive for the attack is unknown.

“I want to tell you, the violence interrupters, the community outreach folks, they are committed to reducing violence in our city, and yes, they are going to be hurt, but they are going to be even more committed tomorrow and the days that follow, because we can do better by our community and we’re going to work hard to make it better,” D.C. Attorney General Karl Racine told NBC.