I love this show! Love it! My theories are that the wife kills the husband (Sam) for cheating on her and maybe getting Lila pregnant; Or maybe Bonnie kills him for kissing her and getting her fired; or Wes kills him for trying to rape Rebecca; or lastly the law students kill Sam as self defense for helping Rebecca. I also think the girl (Lila) committed suicide after she found out she was pregnant. Seeing as how the show is developed, maybe they won't say who killed Sam yet.