Read, Senatorial Privilege.
The boy left her while she was still alive. He walked back to a cottage to sober up before he called his lawyer. She had plenty of time to be rescued. Her oxygen finally ran out, and she died. Her corpse was in a position of fighting to keep her head above water.
Wiesel Kennedy tried to get his cousin to take some blame, at which the cousin said, "Even Kennedy's don't [crap] in their own back yard."
You are poorly-informed on this subject.
Great book. The younger generation should read it as well.