william hunter's 11-year-old son, tom and his house cleaner shirlee sherman.he latest 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. >> and, of course, because of her position, again, we're right back to creighton university and specifically right back to the pathology training program. we believed that that incident as well could be related. with little to go on, the detective decided to follow the money. >> i wanted to find out where he had active credit cards and/or banking, checking accounts. >> reporter: and once again, the 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