Complex sentence: At the time of his death Gale was no longer a Scientologist, and had not been one for years, having, according to Brian Ladner, his best friend at Earthlink, become interested in the Church of the SubGenius.
Split into simpler sentences: At the time of his death Gale was no longer a Scientologist, and had not been one for years. According to Brian Ladner, his best friend at Earthlink, Gale became interested in the Church of the SubGenius.