EXCLUSIVE

Micah Xavier Johnson -- the 25-year-old law enforcement confirms as the Dallas shooter -- had involvement with a handful of pro-black and police watchdog groups.

Johnson's social media accounts reveal he was a member of several Black Panther organizations, including The New Black Panther Party Houston Chapter.

Johnson also subscribed to a Facebook group called "The Black Matrix," which aims to dismantle the system it believes "white societal elites" have put in place to "control the perceptions of its Black populations."

Johnson -- who served in the U.S. Army -- had involvement with Facebook communities including "Filming Cops" and "Police The Police," which describes itself as a platform for documenting and archiving police misconduct, brutality and abuse of authority.