Robert Durst is right: He killed them all, of course

Almost certainly, Robert Durst is a sociopathic serial murderer. On the gasp-inducing conclusion of the HBO documentary about him, “The Jinx: The Life and Deaths of Robert Durst,” he mutters to himself, mic’d up in the bathroom, after being confronted with handwriting evidence so damning it made him twitch and burp: “What the hell did