Man Boards Delta Flight Without Ticket After Photographing Girl's Boarding Pass

Man secretly photographed girl's boarding pass and used phone to board Delta flight without ticket
Was caught when flight staff realized the girl's boarding pass was scanned showing she was already on plane
Tried to get into emergency equipment storage and spent significant time in bathroom while others boarded
Flight returned to gate when attendants realized there were no seats for him and found no ticket
Admitted to trying to board earlier Southwest flights unsuccessfully before leaving and boarding Delta