Leader of the Church of Scientology who became the Chairman of the Board of Religious Technology Center in 1987.
He worked under the founder of the Church of Scientology, L. Ron Hubbard, as an assistant.
He was behind The Flag Building in Clearwater, Florida which has been described as the spiritual headquarters for Scientology.
He married Michele Diane "Shelly" Miscavige.
He followed in the footsteps on L. Ron Hubbard.