I remember well the death of Roberto Clemente. My sister was murdered that same evening.
I also remember LBJ and Truman passing within weeks of each other. Armstrong walking on the moon (I was five and my older brother told me the world would explode if he touched his foot on the moon - I totally went bananas. My Mom laid a beating on my brother for that stunt).
Of course, Reagan and JPII getting shot. Challenger-I was in Contracts class in my first year of law school when class was interrupted with the news. Berlin Wall, et al.
And Cronkite reporting how many soldiers died that day in Viet Nam.