Katz Double was a young sniper mercenary bent on killing Golgo 13. He was brought into the American State Department for the job of killing Golgo before he can accomplish his mission of murdering a Jordanian emissary. While looking at the airport layout, Katz finds out that there are 4 major sniping spots Golgo might try to use to take out the emissary. A SWAT team was also assigned to backup Katz. They didn't know that there were 2 faked sniping points with disassembled M16 rifles. So once Golgo began his assault on the Jordanian, Katz tries to pick off Golgo, but grazes him then the Asian assassin kills Katz. In the aftermath, Katz learns a valuable sniping lesson before he dies of his injuries.