yea, just be by her side all the time, dont let the bastard anywhere near her, an if her tries anything make sure he suffers an needs a hospital bed an life support.
i hope she's ok, collect evidence, medical reports and photos to make a compilation of evidence against him, try and use character witnesses and other people's reports to gather as much against him as you can, make sure he cant hide from your and her legal battle against him.
personally i'd kill him myself if i was in your position, but i believe firmly in "an eye for an eye, a tooth for a tooth"
i hope she recovers, i lost my mate a year ago becuase people were jealous of the attention he got from girls, his drink was spiked an he ended up on life support, i hope it doesnt come to this an i hope she pulls through, but my mate's body couldnt support itself, the one thing i regret more than anything was not being there with him.
so please, go an spend every minute you can with her, she'll need you there.
i hope for the best, an make sure that bastards get what he deserves.