The statute of limitations on murder is... never. But before DNA testing many cases went unsolved.

That might have been the case in the 1992 shooting death of a Spokane Valley furniture store owner except this week the gunman was convicted after DNA taken from a fake beard found at the crime scene was a match to the suspect.

60-year-old Patrick Kevin Gibson was arrested in western Washington last fall in connection with the shooting death of Brian Cole on Nov. 7, 1992. Gibson reportedly threatened Cole's wife -- who was in a wheelchair -- then shot the victim. The case had gone cold for 19 years until DNA from a fake beard led police to arrest Gibson. His trial was delayed because the original piece of DNA evidence from a hat from the scene had been re-used for an episode of "America's Most Wanted," potentially tainting the sample.

Gibson was not only described as a 'serial robber,' but was a registered sex offender as well. The case has been described as one of the most sensational criminal stories in Spokane's recent history.