You aren't a horrible person. A lot of people can't handle watching people slowly dying. It takes a lot out of you. And that's such a shame what happened in your home town. I hope everything gets better for that persons family.
D: That's scary. I live right outside of D.C. and I swear there is always someone committing suicide by jumping in front of the train everyone couple years at this one station I always used to go to. I was never there for any of them. :\ If it isn't that, there's always some incident or another.
I think that's why my parents always insisted on driving me everywhere when I was younger.