They say clothes make the man, but they also make mysteries for this week’s roster of radio detectives. George Valentine hunts a killer where the only clue is his distinctive attire in “Death Wears a Gay Sport Jacket” from Let George Do It (originally aired on Mutual on October 18, 1948) and Philo Vance probes the murder of a dress shop owner in the syndicated episode “The Herringbone Murder Case.” Richard Diamond tries to find out why someone keeps stealing blue serge suits (originally aired on ABC on February 9, 1951), and The Saint discovers a bullet hole in the back of his brand-new suit in “Formula for Death” (originally aired on ABC on March 25, 1951). Finally, John Lund stars as Johnny Dollar in “The Rochester Theft Matter,” where a girl is gunned down while wearing a stolen fur coat (originally aired on CBS on May 12, 1953).