I know I'm opening a can of worms here, but it wouldn't be the Baptistboard otherwise...
Kopechne wasn't killed by Kennedy. She was accidentally killed in an auto accident in which Kennedy was driving. There was never any indication of any negligence on Kennedy's part in the accident. What Kennedy was guilty of was leaving the scene of an accident without reporting it to authorities. There was never any indication that alcohol ws involved, that there was any infidelity going on, or that his leaving the scene caused her death. He plead guilty to one count of leaving an accident scene and received a two month suspended sentence. He was guilty of stupidity, but of nothing else.
I've abhored the bulk of Kennedy's politics. He was way too liberal for my taste, and even too liberal for many moderate democrats. If a person wants to abhor the man, it is not necessary to inflate Kopechne's death in order to do so.
That said, when a person passes away, it at least appropriate to grant some courtesy and refrain from such debates for a few days. The fact that we can't do that suggests that common courtesy is a trait absent among many.