dateline detective jennifer garcia was suspicious of nick's yuma county sheriff detective jennifer garciaskinner. he seemed to have both opportunity and motive to kill nick. so, when just didn't didn't want to give a dna sample -- >> i thought that he might be the guy. >> but then, after a little persuasion. yeah, that's fine. collect dna. let's do it. >> his cooperation plus date means of people at the bar and claudia were enough for detective garcia. >> we were able to rule him out pretty quickly as a suspect. >> the morelos family was wishing impatiently for an arrest. >> your loved one has just been murdered. we wanted answers and just weren't getting them. not quickly enough for us, anyways. >> two small tucson is how some referred to this city. it is a place where everyone seems to know everyone else. while detectives were examining nick's romantic passed, brother john started doing a little detective work of his own, by talking with next coworkers. he told hr director jeff johnson how the suspect had apparently been cut while going through next window. >> jeff johnson told me and s