Omar Mateen a religious security guard who wanted to be a police officer

Omar Mateen, 29, was a bodybuilder and a security guard, a religious man who attended the local mosque and wanted to become a police officer.

However, early on Sunday, he opened fire at a gay nightclub in Orlando, Florida, in an attack that left 50 people dead and 53 others wounded.

A former Florida police officer who says he once worked with the shooter, described him as “unstable and unhinged”.