I'm a huge Beatles fan and I remember that awful day 30 years ago. I had just graduated from high school and about a week or so before he died, I bought the Double Fantasy album. We all heard the news and couldn't believe it. That was also the year my dad died, so I was in a deep funk for about a week after Lennon was shot.
I played all the Beatles albums I owned at the time for weeks after. My other thought at the time was disbelief, that Lennon would be assasinated like a political figure. Sure, he was political, but in other respects, he wasn't.
My other thought is he actually became the subject of the news today, oh boy -- as some of you know, those are some of the lyrics of A Day in the Life from the Sgt. Pepper album.