Chris Rathaus, known on the air as Chris Randall, or "'Topher," for short, at WPTR-AM in the late 1960s has died. He was 63.Randall took over WPTR's all-night show from Ed Dague (known in his disc jockey days as Ed Day) in 1968, then moved up to hosting evenings after his longtime friend, Mark Allen, left that slot and the station for Detroit. The next year, Randall followed Allen to WKNR where he was back on overnights for a year as Chris Ryan.In the early 1970s, Rathaus was the Production Director of KDKA-Pittsburgh, moving to Program Director of WOWO-Ft. Wayne and then WDAE-Tampa.He returned to his first love, audio production, in the 1980s and stayed with it through various production houses and stations in Florida and California, landing at Sirius Satellite Radio in New York three years ago as a production specialist for one of their Talk channels.Details of his final days were not revealed by Sirius, at his request. Rathaus, who was a heavy smoker, is believed to have died from lung cancer at a New York City hospice on May 18. Funeral arrangements are pending. He leaves an ex-wife, no children, a legacy of broadcast excellence, as well as innumerable friends and associates who will miss his personality, character and friendship even more than his considerable talent.