Television There Was Only One Way Half Man Could End The show’s creator and star, Richard Gadd, on the finale’s big twist, how he feels about your fan fiction, and the one question he gets more than any other. Photo illustration by Slate. Photo by Anne Binckebanck/HBO/Warner Bros.  Welp. It turns out there were two bodies in the barn. Thursday night’s series finale of Half Man , the HBO show from Baby Reindeer creator and star Richard Gadd, ended with a staggering scene of brutality and a twist: We knew from an earlier episode that Ruben (Gadd) would die, having seen his body get wheeled out on a stretcher, but before he perished, he managed to kill Niall (Jamie Bell) at his wedding in one final act of revenge. Across the show’s six episodes, the two “brothers”—Niall and Ruben aren’t biologically related, but their mothers were in a romantic relationship for decades—orbited each other, occasionally crashing into one another in moments of bloodshed and anger.…