Years before he shot up an Orlando gay club in what became the largest mass shooting in American history, Omar Mateen regularly picked up lunch from a drag queen at Ruby Tuesday’s. He may have even gone to see a drag show or two, a former high school classmate told The Daily Beast. About 10 years ago, Mateen, a few years out of high school, was working at the supplement store GNC. Samuel King, a year ahead of him in high school, was working next door at the restaurant chain. Mateen was a fe