Before Robert LaTourneaux from Boys in the Band died, he mentioned that when he was hustling one of his clients was Walken, who seems to have flown under the radar as far as his gayness is concerned.
"[LaTourneaux] gave an interview to a gay magazine naming his famous married closeted bisexual lovers, alleging one of them to have been Academy Award-winning actor Christopher Walken. He also accused Walken of having an affair with another married actor, Robert Wagner, on the night of actress Natalie Wood's (Wagner's wife) unexplained death."
The night before Natalie's death, the skipper wrote that he spent the night with her on Catalina while Walken and Wagner spent the night on the boat. This is why the real story about Natalie's death has never come out.