Board Thread:Spoilers!/@comment-2153169-20180110171410/@comment-25926288-20180401170119

Only because it makes for a better story...Nick went witch-kill crazy after a mellowing out due his his best bud, Henry Branson (whoops, slipped up there) was poisoned at the hands of the Coven.

It would be cool to see that Henry really didn't have "adventures" with a murderous loon, but someone who was recovering from his issue's only for trauma to break him. Thus, in HH, Nick is avanging Henry's loss as well as falling back into his lust for revenge.