Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-108.81.117.0-20130908222513/@comment-14959278-20130909142802

Pizzanigs wrote: Not to mention in Season 1 or Season 2 Allison mentioned that the hunters used arrows and crossbows because they won't heal as long as they're impaled with them. Kali was impaled with the glass. I think this one is the most likely answer but once you include the fact that even an Alpha can only heal so fast (and her jugular was slashed as well as having multiple shards of glass in her brain and she'd be just as dead as when Derek killed Peter by a simple shallow slash of the throat.