Complex sentence: Eventually, however, rumors of adultery, homosexuality, unauthorized polygamy, and the performance of abortions (he was a physician), he was expelled from his position and he became a bitter antagonist of Joseph Smith and his church.
Split into simpler sentences: Eventually, however, rumors of adultery, homosexuality, unauthorized polygamy, and the performance of abortions emerged. He was expelled from his position and became a bitter antagonist of Joseph Smith and his church.