I'm thinking you and Killer might be the same person, you both ask a lot of stupid fucking questions.
But let me humor you.
I'm not sure which world you live in, but in this world, no one lends money to people they don't know. Not to mention, just like any other illegal operation (weapons, drugs) they aren't just going to let any old fucktard from the internet know anything about their business.
On top of that, the chances of him not buying off your hitman and sending him back to you to collect his money and your life are pretty slim. You think any guy who would kill people for money has some morals or code they follow? LOL he is going to to do what the person with the most money wants. Which since you have to borrow the money, assume it would be the other guy.