Original sentence: Warren Steed Jeffs (born December 3, 1955) was the leader of a Mormon fundamentalist church known as the Fundamentalist Church of Jesus Christ of Latter Day Saints (FLDS Church) from 2002 to 2007
Edited sentence: Warren Steed Jeffs (born December 3, 1955) was the leader of a controversial Mormon fundamentalist polygamist sect known as the Fundamentalist Church of Jesus Christ of Latter Day Saints (FLDS Church) from 2002 to 2007