Complex sentence: On the evening of September 6,2005, Avery was found dead in his cell his body was discovered two days after he was strangled and struck on the head, by his satanic cell mate.
Split into simpler sentences: On the evening of September 6,2005, Avery was found dead in his cell. His body was discovered two days later after he was strangled and struck on the head by his satanic cell mate.