Denise Richards hails Patrick Muldoon her 'best friend' after his shock death Denise Richards has shared an emotional message following the death of longtime friend and former partner Patrick Muldoon, recalling their decades of friendship and collaboration. 22 April 2026 Denise Richards has paid tribute to Patrick Muldoon, describing the late actor as her "best friend" and "voice of reason" following his death at the age of 57.