Some effect me more than others,for reasons I am not sure I can fully articulate.
Breiviks killings for instance effected me a lot - the calculation, the ruthlessness and lack of pity he exhibited effected me. Likewise, this recent tragedy in the US, and the one a few years ago at Columbine - examples of innocents killed without compunction, examples of selfless sacrifice by teachers shielding their students - all these I find moving.
On the other hand, I was totally unmoved by the news of Diana's death, other than the obvious emotion at hearing that someone young has died senselessly. I was totally amazed at the outpourings of grief exhibited by the british public, and found myself totally amazed at what I saw as a lot of mass hysteria and synthetic sorrow.....
Not quite sure what that makes me - some sort of sociopath maybe? :)....