Are you a serial killer? I wouldn't imagine getting turn on by blood. My fetish is seeing panty. 
I'm not thinking about hurting people, just the blood, dripping and running down a girls body, maybe her breasts, is a huge turn-on for me.
Thanks for your input!
You should watch/read the Twilight or True Blood series, or anything with vampires in for that matter. I'm sure they'll be right up your street.