mother's day 2013 was dr. chhanda bewtra, a professor at creighton who had written him bad evaluations. >> she was somebody that he really thought was too hard on him, was the cause of his termination to begin with, and he really had some animosity towards her. >> reporter: two days before the attempted break-in, prosecutors said anthony garcia used his phone to look up dr. bewtra's address. analysis of a scant bit of dna evidence taken from a doorknob at the bewtra home showed there was a significant chance that either garcia or a male relative of his had tried to break in. >> when that doesn't work because they're not home, he then goes to wing stop, right up the road, and goes to plan b where he searches for the brumbacks' address. >> reporter: this receipt shows his location at wing stop around 2:26 p.m. at 2:57, they said, garcia used his cell phone to look up dr. brumback's home address.