Technically, yes, a brain injury. It was termed as "bleeding on the brain" in the article I read. Whether that is from blunt force trauma or being shaken I have no idea. Either way it sucks.
I also noticed in an updated article that she apparently has no recollection of the events from the night. Whether that's from a concussion or from some sort of drugging...or both...is not listed.
I don't know about the electric chair but I do think our legal system is entirely too lite on animals like the person who did this to her.