the pistol used to kill cliff merck had been sold to a drug dealer by robert and gerald cowan. for some reason, the cowans' fingerprints did not match those found at the crime scene. >> the person who attempted the comparison was unable to make a match, and he -- he failed to have another examiner verify his conclusion conclusions. >> this was a breach of protocol. the fingerprint examiner is required to have someone verify his or her conclusions. so the fingerprints were resubmitted for analysis, and this time the results were verified by a supervisor. the fingerprints found in the mercks' home matched robert cowan. >> goes without saying that i was highly irritated and embarrassed for the department. >> i initially on the latent evidence being misread, i tend to believe that was probably a training issue. >> this was simply a situation where the original examiner was in over his head and couldn't handle it. >> armed with the fingerprint evidence and ballistic test results, robert cowan was arrested and charged with two counts of first-degree murder. >> took him back to the of