. >> reporter: jaclyn moore met derek at the police academy. she and derek hit it off immediately. >> a detective spot opened and he got it and i didn't. >> reporter: now derek had caught his first case. which was also the first homicide the small town of draper had seen in years. >> someone called police just after 10:00 this morning to report they had come across a gruesome scene. >> reporter: by the time veronica and james saw the reports annie had been missing for nearly 20 hours. the information that it's an asian woman in her 20s, i think, was the initial report. that would seem to rule out annie, certainly. >> initially, we were thinking, no, that's not possible. there's no way. >> reporter: but then, a detail sergeant carpenter shared with salt lake city's nbc affiliate ksl tv. >> there was a shoe found at the crime scene, and there was one on the body. >> reporter: a red shoe. the same kind james had bought annie for valentine's day just weeks earlier. veronica and james tried to stay calm. >> we called the police. and we said, hey, ou