Many aspects of Marty's story are disputed by the Church, which calls him a liar, a criminal, and an apostate. But the verifiable facts are as follows: he was a fully-paid-up Scientologist for 27 years, before quitting in 2004. For much of this time, he was a high-ranking executive in the Church, helping steer some of its most sensitive legal campaigns. He was also acquainted with many celebrity members, including Kirstie Alley, John Travolta, and Tom Cruise.