Maryland prosecutors on Thursday ruled out criminal charges against a police officer who fatally shot a man during a tactical team’s predawn, no-knock raid on his family’s home, a killing that galvanized a loose network of anti-government extremists this year.

Duncan Socrates Lemp’s family says the 21-year-old was sleeping in his bed next to his girlfriend when a Montgomery County police officer opened fire, but prosecutors concluded that Lemp pointed a rifle at the officer and posed a threat.

Howard County State’s Attorney Rich Gibson Jr.’s office, which reviewed the case and presented evidence to a grand jury, said in a 17-page report that the unidentified officer was justified in using deadly force.

Members of a tactical unit were serving the no-knock search warrant at the Lemp family’s home about 4:30 a.m. on March 12 when the officer fired five shots through a shattered window from outside, hitting Lemp all five times.

Read more: AP