Who would leave a snake on somebody's doorstep?

That would freak me right out! Unless you post your home addresse on the internet then I would have to assume it was somebody you knew? I would have started grilling all of my friends. lol

Good luck. I hope he starts eating better for you.

I took in a ball that was being mistreated, they kept offering him a huge rat that he was obviously terrified of... He eats just fine for me but only pretty small prey... He's on small rats and that took time as it is... He has a few little spots that look like small scars that I assume are rat bites... So I think that kinda trauma is commonly going to make them afraid of the rat... My guy took 2-3 large mice for me at a feeding for a while...

Have you tried multiple prey items? Or is he not eating at all? Was he eating the f/t at all before you put the live in there?

If he killed it but didn't eat it, it could be that he wasn't hungry but he didn't want to get chewed on again so he killed the rodent in self defense.... To me that would be a good sign. He's not so terrified that he just cowared in the corner...

I know nothing about bloods so I can't be of much help... Good luck and thank you for taking the poor creature in!