ASICMINER isn't doing well which is the collateral for many (defaulted) loans.
Ahahahaha so obvious, blaming AM!
If it was a collateral, it should obviously have been sold when its value was approaching the loan value.
If he hasn't, it means he's utterly inept, but obviously nothing like that happened anyway, since he scammed you.
YEP - 6200+ BTC in..... 0 BTC out.
Certainly looks like a ponzi scheme.
No matter HOW badly he "messed up" 100% loss would take levels of incompetence whereby the individual could not even spell bitcoin.
Scam.