Complex sentence: King was rushed to St. Joseph's Hospital, where he was pronounced dead at 7:05 p.m. that a prominent leader of the Civil Rights Movement and Nobel Peace Prize laureate who was known for his use of nonviolence and civil disobedience.
Split into simpler sentences: King was rushed to St. Joseph's Hospital, where he was pronounced dead at 7:05 p.m. that evening. He was a prominent leader of the Civil Rights Movement and Nobel Peace Prize laureate who was known for his use of nonviolence and civil disobedience.