The coroner hasn’t even ruled the death a homicide but fake news can say he’s considered a suspect.
My theory:
Natalie Wood was most likely banging Christopher Walken. They all got into a huge fight on the bost while uber drunk. She fell overboard and drowned while everyone was too drunk to rescue her, so they all just kept quiet about it afterwards.
Gee... maybe they should pay the same due diligence to Ted Kennedy and Mary Jo...
Natalie Wood was an accident. Mary Jo was negligent homicide caused by Teddy The Swimmer.