Hilary Duff's "heart aches" for her former Lizzie McGuire co-star Robert Carradine.
Robert - who played Hilary's onscreen dad Sam McGuire in the hit Disney teen show - has died aged 71 with his brother Keith Carradine confirming his sibling took his own life after a "nearly two-decade battle with bipolar disorder", a mental health condition which leads to extreme mood changes, and Hilary has now shared her heartache after hearing the sad news.
