if anyone was elusive, it was standefer. but then, through a tip from the growing network of ex-investors, karl met a man named harold karaka. harold said he knew all about dennis. >> he could sell that same piece of ice cube to the eskimo more than once, which is evident by the number of victims that were victimized more than one time. >> reporter: karaka says standefer took him for over $12,000, promising valuable asian artifacts. he never delivered. and now, karaka was angry. >> i told karl i made a promise to dennis that he decided not bring back my money that i would do whatever was necessary to go after that money and collect it. >> reporter: and he knew how to do it because this man, allegedly conned by dennis standefer like the rest, is a private investigator in los angeles. and in his business, karaka couldn't afford to let standefer get away. >> i didn't want my reputation to be soiled by an individual like this. and it wasn't the money. on my part, the loss of the money was less critical.