william hunter's 11-year-old son, tom and his house cleaner shirlee sherman.victims were dr. roger brumback and his wife mary. and at 2:19 p.m., on the day the brumbacks were last known to be alive someone had tried to break into the home of a third creighton pathologist, dr. channda bewtra. detective found an answer. a credit card issued to anthony garcia had been used twice in the omaha area on mother's day 2013. the first charge was around 12:30 p.m., at casey's general store just outside omaha. this is store video of garcia buying beer. the second was two hours later, at a chicken joint in west omaha called the wing stop. the wing stop is about a mile from dr. bewtra's home. >> i was able to get a receipt for that that showed it at 2:26. well, i knew that dr. bewtra's alarm on her house had gone off at 2:19. and that was about a mile away from the restaurant. >> so your thinking is he tries to get into the bewtra house. he can't do it. >> correct. >> he leaves, maybe knowing he set off the burglar alarm, drives about a mile to this wing restaurant and -- >

what about all the other victims here that can't speak to shirlee or thomas or roger or mary. . >>> homecoming queen hannah hill was just 18 when she disappeared. everybody's sweetheart. >> this doesn't happen to people like her. what, why, where, when? >> and who? was it her boyfriend? they had fought before. >> did you verbally abuse her? >> yes. >> did you physically abuse her? >> yes. >> or was it another man in her life? they had been together the night she died. >> did you have sex with her? >> more than 13 years would go by as hannah's family fought for justice. two possible suspects. >> did you kill hannah hill? >> absolutely not. >> did your kid kill hannah hill? >> no. >> two trials. >> i was a wreck. it was just very intense. >> would there ever be justice for hannah hill? >> the truth always comes out. here's dennis murphy with our story. >> she was a girl who made big entrances. >> she could walk in the room and light up the place. she would make the whole room smile. >> she was always happy, just wanted to have fun. >> but it was her exit, her sudden disappearance, poof, gone fro