Lisa Rinna is remembering Patrick Muldoon following his sad passing. As you know, the actor tragically passed away over the weekend due to a reported heart attack. It was devastating to hear, as he'd just recently announced a new project just days before. It was a shock to everyone, including his old co-star Lisa. Related: Alan Osmond Of The Osmonds Dead At 76 The duo worked together on Days of Our Lives back in the 90s. They even had a brief romance where they dated for a little while before she got married to her current hubby in 1997.