Gunmen

They were serial killers who used guns as their weapons of choice.

Thomas Dillon was a draftsman with a side hobby...he liked shooting people. He would kill five people over a three-year period which required the involvement of the FBI to gain his capture. Meanwhile in the Soviet Union, he had a similar counterpart in Anatoly Onoprienko who was one of the most prolific serial killers in European history. Taking advantage of the fall of the Soviet Union, Onoprienko roamed from village to village, randomly murdering people for sport and pleasure. He would be nicknamed the "Terminator."