User blog comment:Tesla Man/The Big, The Bad, The Deadliest: B.C. Tourny/@comment-2006360-20111123165106/@comment-2006360-20111123205132

Well, Caligula did have another of his wives who was also his sister (duh duh duh!!! INCEST!) killed, but he didn't wield the blade. The only person Nero ever personally killed was himself.