Jennifer has died twice in canon, and an additional 4 (I THINK?) times in Camp. There's a bit of a complication to the fact that she was human during only two of her deaths, and she's currently a demon, so... not really mortal at all. I play it as more of a walking dead human/demon soul hybrid thing (demon sort of fused onto her regular soul, with the addition of immortality+powers). Do with that what you will, I guess?! lol sorry