Politics. No one’s tired of that yet, right? Ha. Ha. Ha. Yeah. So, in “Candidate for Crime,” Jackie Cooper is Nelson Hayward, a US Senate candidate who’s sick and tired of his campaign manager telling him what to do. Does he fire him? Nope, it’s a literal Saturday Night Massacre, as the pol kills him in cold blood, then tries to pin it on a mob assassination attempt. Of course, Columbo doesn’t buy this angle for a minute and engages in a one-man filibuster against…. murder. JD Ryznar (Beyond Yacht Rock) returns to the program to talk about the (rather uneven) episode, Dixieland jazz, the arcane world of writing credits, and oh so much more.