The picture on the left may be a normal brain scan, but the picture on the right is a postmortem. Being mistreated for a decade and then deliberately dehydrated to death can cause extensive brain damage. There certainly may not have been "much to recover" after her death, but the state of her mental capacity prior to her murder can no longer be determined.
The one on the right is identified as being from 2002, but I can't totally vouch for that. Although it wasn't authoritative, that's what the link said.
Thanks for clarifying the scam scan.