Blood Hit on someone on the ground?

I'm wanting to put bullet blood hits on our bad guy on the ground. I've posted a image so that you can see what I mean:

Basically how do I pull this off? I realize now I should of probably just done the effect non-digitally, but it's kind of to late for that. So does anyone have a tutorial on how to do this the best way possible? I know how to do bullet hits on people standing up and such, but the whole angle and everything in this part is just hard and does not look right :(

Please help!!!! Thank you!!!
-Gage Welch
How long is the shot?

I would start by taking a frame, painting on a decent looking whole and splatter, then track the spot where you want it to stick to. If your guy is moving around on the floor, then good luck i guess. With out seeing the full shot I can't really offer up much more advice. Maybe check out video copilot. Theres tutorials on there about blood splats.