as preposterous as this seemed, it took on more significance when prosecutor knox mcmahon learned of a similar crime that happened three days before virginia's death. a call girl went to an apartment to meet a client. she said there were no lights on in the apartment, only candles. >> did you call for a date? >> the client wouldn't identify himself but asked her to undress. then, without warning, he pulled a knife and demanded money. >> he then tells her to run and don't look back. she is only partially clothed. >> the apartment was leased to a known drug addict, roy beck. but was he the perpetrator? the victim was shown a photo lineup. >> she positively identified roy beck. the physical description she gave fit roy beck. >> that's the guy. >> it did not fit mr. bullard. >> coincidently, roy beck was the friend justin bullard said was living with him at the time of virginia russell's murder. that meant two suspects were staying in the apartment that was the source of all the evidence in virginia russell's murder. >> you definitely have two people. bullard owns the gun, owns the boots