S6, E2: To his great surprise Tony finds himself enjoying his role as speaker at an experimental psychology convention – mainly because it reacquaints him with fellow delegate and old friend Rachel, with whom he shares a fun evening drinking before narrowly escaping her attempt at seduction.Next morning Tony wakes with a sore head… and police breaking into his hotel room. Rachel is dead - brutally murdered in her room overnight. And Tony was the last person to see her alive.