Holly Marie Combs pays tribute to her late ‘Charmed’ co-star and friend, Shannen Doherty, one week after her death. On Instagram, the actress shared a video featuring throwback photos of Shannen and wrote in the caption, ‘I spent all day looking for one particular picture and found just about every picture but that one.’ Holly says the ‘Beverly Hills, 90210′ star ‘promised to haunt’ her after she died. Shannen died at the age of 53, following a years-long battle with cancer.
