Yeah it's interesting that both the first and second episode of this season have pushed sympathy for the killer accidentally killing their victim on the spur of the moment/later having reason to regret it (the dog wasn't actually dead, the first guy was a case of mistaken identity). I found it hard to completely sympathise with the killer not even confirming the guys identity before killing him mind you, but it did all make a horrible kind of sense with him not going there with the intention of killing him, but just losing it when he found a drunken frat guy who seemed to live down to all of his worst expectations about the drunk-driver who had killed his father