Complex sentence: Angélil was accused by Yun Kyeong Kwon Sung of sexual assault stemming from an incident in 2000 that took place in a Las Vegas hotel, and which was investigated by police.
Split into simpler sentences: Angélil was accused by Yun Kyeong Kwon Sung of sexual assault. The alleged incident took place in 2000 in a Las Vegas hotel, and was investigated by police.