The part where they blatantly lied to the patient's family, saying they found their loved one's body at a Dollar General down the road, then in the parking lot, then finally admitting that they were on the roof after gaining access to a secure area because the door was propped open, that's the part that to my mind should result in the harshest criminal charges.

It won't though. Because someone made money, and money is the only legal, moral or ethical force in our society today.

It it makes it any better this happens also in Europe, everyone are lying. In a tragic case of a family member dying in hospital a simple question "where the body was found?" and following up on the answers can reveal a lot. Never assume the person died in their hospital bed under full care and attention.