>> all personal property we own, i want her to have everything. i'm starting a new life with a new person. >> but investigators noticed a slight problem. the name of brad's wife reene was misspelled. >> the letter to the sheriff, it congratulated him to his appointment and the sheriff is in an elected position, so there were huge mistakes. there were just huge red flags. >> investigators tested the letters with ninhydrin, a chemical solution that reacts to the amino acids in fingerprints. after it was applied, the documents were dried thoroughly. scientists found numerous fingerprints on the two documents, but none matched brad brisbin. they weren't larry moore's fingerprints, either. next the letters were analyzed by a forensic document examiner. both letters were typed with the