Let's see if I can sum up all the horrific crimes we've seen on Downton. Larry Grey drugged Tom to make him rude and an embarassment. Green raped Anna. Vera tried to blackmail John to ruin him, Anna, and the Crawley family (especially Mary), then tried to frame John for murder to have him killed. Grigg bribed Carson. O'Brien first killed an unborn child, then tried to ruin Thomas after luring him into a trap. Edna first tried to make Tom feel bad and seduce him. Then, she essentially committed Grey's crime (don't know if drugs were involved), Green's (if not rape than sexual abuse), and Vera's first one (with lies and schemes rather than the truth) all at once to the same person. And like Grey, Green, and Vera she felt no remorse. I admit, it's hard to rate them on terms of who has the blackest heart.