If someone 6-4 had a small girl in a chokehold from behind while standing he could absolutely control her neck enough where her head would not be flopping all around. She thrashes he snaps her neck.
Possibly. Are there any throttling marks on her neck?
My wife was an ER nurse for a long time. ER nurses and docs are trained in analyzing bruises and injuries, mainly for evidence of child abuse being pawned off as “an accident.”
Most people don’t realize how much forensic analysis can be done with these type of injuries. They can date a bruise by color and other factors day by day. If this was a hoax, the doctors and detectives will catch her out pretty quickly.