Complex sentence: It subsequently emerged that Jenkins had not only been charged with assaulting Fiore, but had been convicted two years earlier for assaulting a woman in Calgary--a conviction that had not been disclosed to either VH1 or "Megan Wants a Millionaire" producer 51 Minds.
Split into simpler sentences: It subsequently emerged that Jenkins had not only been charged with assaulting Fiore, but had been convicted two years earlier for assaulting a woman in Calgary. Neither of these incidents had been disclosed to either VH1 or "Megan Wants a Millionaire" producer 51 Minds.