1. You put yourself in a very dangerous situation, consorting with the Kennedys.
I heard that she could have fallen asleep in the back of his car not knowing that Kennedy and a girl he picked up at the party would decide to take a ride. We'll never really know one way or another.
2. I also heard that the parents were paid off. Typical of the Kennedys back then -- pay the parents off and they will praise the Kennedy family no end. This happened in the late 60's, just several years after JFK's assasination when Irish Catholics still thought Kennedy's were Kings.)
3. The responsiblity lies with the judge, the jury that wasn't allowed to ask questions of Teddy boy, and the suck-up press.
You've got that exactly right.
In the 1990's, I lived on Cape Cod and became acquainted with a lawyer who was a "substitute judge". He is a Republican. When the Kennedy/Kopechne thing happened, the Judge for Duke County (Boyle?) was on vacation and my friend was told to be ready to substitute.
The real judge quickly cancelled his vacation in order to protect Teddy.
The law in Massachusetts at that time required a charge of manslaughter in ANY case where an occupant of a vehicle was killed. The judge, and the prosecutor, flatly ignored the law.