An Army report says the reservist who killed five Dallas police officers had kept an unauthorized grenade in his room on an Afghanistan base in 2014.

The report released Friday was from Army officials investigating a sexual harassment complaint against Micah Johnson.

It includes new details about an incident that left Johnson stripped of his weapons and removed from his base in disgrace in May 2014.

Johnson's military career ended after a female soldier reported four pairs of panties missing while the two were at a base in eastern Afghanistan. His parents have said he was never the same.

The 25-year-old from Dallas was killed July 8 after targeting police during a rally protesting recent police shootings. Police killed Johnson with a bomb-carrying robot.