In a Fox Network Exclusive, it’s being reported that in the hours after he blasted his way into an Orlando gay nightclub, and with his victims lying dead or wounded around him, Omar Mateen took to Facebook to pledge his loyalty to Isis and threaten more attacks. A key lawmaker that knew about the gunman’s posts told FOXNEWS.com.

Mateen was quoted as saying: “I pledge my allegiance to Isis leader… …may Allah accept me.” and writing in a post, “The real Muslims will never accept the filthy ways of the west. You kill innocent women and children by doing U.S. airstrikes–now taste the Islamic State vengeance.”

Mateen’s social media accounts were taken down before they could be widely viewed by the public. We will continue to follow this developing story.