geovany must have killed her.ow much stock could roberts put in this guy joe, who initially wouldn't even give his full name, and who was this geovany anyway? the detective checked for priors. there wasn't much. >> he had a record as a juvenile. get his fingerprints, get the fingerprints we lifted from the crime scene, hardly any are legible. >> none were a match. >> you have a suspect, and you want to tie him to the scene but there's nothing to tie him. there's nothing to hit him on. >> but worth a try. he brought geovany in for an interview. >> water or coke? >> it will do damage to my stomach without food. >> of course he denies it. >> i'm real comfortable thinking that you're responsible for this murder. >> that's crazy, sir. >> was it crazy? no way to prove really. and then a couple of days later detective roberts brought the tipster, joe, back in. this time joe powered it all out. said geovany actually told him straight out that he killed someone. >> i just was in shock when he told me that. i was like, well