All that was left on the night Alex Gordon went missing from his job at a Greer recycling center were his cap and his keys. He and his father Michael Gordon had eaten what they call dinner, even though it was 11 p.m. and they were working the night shift at Industrial Recovery and Recycling in Greer, Gordon’s lawyer George Brandt III said Thursday. Michael Gordon was the supervisor that May night and when they returned to the floor, he was called away to look at a problem with a machine. Alex returned to man a shredder, which grinds up plastic waste to ultimately make pellets for reuse. Brandt…