this was consistent with the medical examiner's report. >> the medical examiner determined that thomas mulcahy's blood alcohol level was above the legal limit. >> witnesses said mulcahy was talk to a white male with brown hair, but no one could say for sure whether they left the bar together. using the witness's descriptions, police created a composite sketch, which was distributed to the media. >> we were unsuccessful. everything we did up until that point was unsuccessful. >> but there was one item found with mulcahy's body that provided an important clue. in one of the trash bags was the wrapper for the latex gloves. the price tag shows they were purchased from a cvs drugstore in staten island, new york, but the investigators still faced daunting task. there were almost half a million people living in staten island. >> we had nothing. you know, we were grasping at straws. ator: this is the storm sea captain: there's a storm comin narrator: that whipped through the turbine which poured... surplus energy into the plant which generously lowered its price and tipped off the house which used all t