Collins showed no emotion as the verdict was announced. During the trial the jury heard evidence that he was a controlling, jealous boyfriend who assaulted Anna Larke.
The court was told he made her write down every sexual encounter she had ever had and stopped her using social networking sites such as Facebook and Twitter after reading her messages.
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Broadcaster PBS halted distribution of his nightly interview show and CBS News immediately suspended the 75-year-old.
Twenty years ago I reported from Mostar at the end of the Bosnian War. I returned to be reunited with some of the children I filmed then.
The alarm was raised shortly before 2am on Tuesday. Some 20 people reportedly exited the building before crews arrived.