A former co-worker of Omar Mateen, the man behind the deadliest shooting in U.S. history, repeatedly tried to draw attention to Mateen’s homophobic comments and “unhinged” behavior but was ignored because Mateen was a Muslim and bosses were concerned about being politically incorrect.

Florida Today reports that former Fort Pierce police officer Daniel Gilroy worked the same job as Mateen for G4S Security at the south gate at PGA Village for several months from 2014-2015. Gilroy frequently complained that Mateen “frequently made homophobic and racial comments” and that his behavior was “unhinged and unstable,” but bosses ignored him “because (Mateen) was Muslim.” READ MORE