Orlando killer posted about 'filthy ways of the west' on Facebook during shooting

ORLANDO, Fla., June 16 (UPI) -- The FBI said Omar Mateen posted messages on Facebook threatening more attacks on the United States before and during the massacre in which 49 people were killed at an Orlando nightclub.

In the posts -- on up to five different accounts -- Mateen pledged allegiance to the Islamic State and also expressed solidarity to Islamic State leader Abu Bakr al-Baghdadi.

"I pledge my alliance to abu bakr al Baghdadi ... may Allah accept me," Mateen wrote in one post. "The real muslims will never accept the filthy ways of the west ... You kill innocent women and children by doing us airstrikes..now taste the Islamic state vengeance."

"In the next few days you will see attacks from the Islamic State in the usa," Mateen wrote.

"America and Russia stop bombing the Islamic state," Mateen wrote in another.

Mateen made at least 16 phone calls from inside the club -- including to a local TV producer, a friend and 911 emergency dispatch -- and conducted news report searches through Facebook by using words such as "Pulse Orlando" and "Shooting."

Senate Homeland Security Chairman Ron Johnson, a Wisconsin Republican, said Mateen began broadcasting his message of hate through social media as his massacre occurred.

"It is my understanding that Omar Mateen used Facebook before and during the attack to search for and post terrorism-related content," Johnson told Facebook in a letter. "According to information obtained by my staff, five Facebook accounts were apparently associated with Omar Mateen."

Before Mateen began his assault, at least 300 people were inside Orlando's Pulse LGBT nightclub. Forty-nine people were killed and more than 50 were injured. Mateen engaged in three shootouts with police, who fatally shot him about three hours after he initially opened fire in the club.