What promised to be a lucrative and successful career as a film writer - graduating up from Charlie Chan movies in the late 1930s to such well respected war films as Guadalcanal Diary (1943), a successful adaptation of Forever Amber (1947) and the police procedural Call Northside 777 (1948) - came to an abrupt end when he died of a sleeping pill overdose onboard his yacht off Catalina Island in 1948. At the time of his death, he was doing a treatment for a documentary on the Northwest Mounted Police. There was a Masonic funeral service for him.
A native of West Virginia, Cady started as a newspaper copy boy. He was later a reporter with the Los Angeles Record, before joining the continuity staff of KECA-KFI, Los Angeles in June 1932. He spent time in New York in the 1930s with Fletcher & Ellis Inc. as its director of radio, returning to Los Angeles in 1936. He joined 20th Century Fox in 1940, having previously been employed at RKO between radio jobs.
- Variety, November 9, 1948, p. 5.
- Variety, November 10, 1948, p. 11.
- Broadcasting magazine, June 15, 1932, p. 22
- Broadcasting, September 15, 1935, p. 40
- Variety, November 9, 1948.