Complex sentence: Rebecca Mawii Zahau, 32, was discovered dead on July 13,2011, at the historic Spreckels Mansion in Coronado, California, owned by her live-in boyfriend Medicis Pharmaceutical CEO Jonah Shacknai.
Split into simpler sentences: Rebecca Mawii Zahau, 32, was discovered dead on July 13,2011, at the historic Spreckels Mansion in Coronado, California. The estate was owned by her live-in boyfriend Medicis Pharmaceutical CEO Jonah Shacknai.