Why am I still taking Michael Jackson's death so hard?

Growing up, Michael was my scapegoat from many of my childhood issues (I had a father as abusive as Joe). Because of that, he holds a special place in my heart. When I heard he died, I was completely shocked and devastated. However, the last few days, I’ve been feeling as if I’ve come to terms with it. Yet, today while watching a doentary on him that I’ve seen millions of times, I broke down and cry. My friends are not Michael Jackson fans and they don’t understand why I’m taking it so hard. I’m starting to wonder if what I’m feeling is normal. Yes, the guy’s music helped me through my childhood but I did not personally know him. So why is it that I feel the same amount of pain and heartache for him that I felt when my sister died 2 years ago? Is anyone else taking it this hard too?