locations of both mr. giordano and miss gardner, it's yet another piece of evidence that's inconsistent with his story. >> reporter: this is just the latest disturbing detail to emerge. last week, abc news learned that investigators were looking into a life insurance policy taken out on gardner which named giordano as the beneficiary. >> we're investigating that material to see if there's credibility to the investigation. >> reporter: abc news is looking into reports giordano tried to collect on that life insurance just two days after the maryland woman seemingly vanished. >> no one is saying she's dead at that point. obviously he's basically saying, she's dead. how does he know that? well, perhaps he knows because he was involved. >> reporter: t.j. winick, abc news. >> so much damaging evidence against this guy. we should remind folks he's not officially been charged in the case but they are detaining him at least until the end of the moh because he's obviously a person of interest in the case. there's suspicion he was