Police determined the fake business proposal that was sent with the flashlight bomb was typed on an electronic Smith-Corona typewriter.
The death letter
The typewriter had a daisy wheel — a disk with letters, numbers and symbols on spokes — that serves as the printing element of an electric typewriter or printer.
According to police, at the time, only two per cent of people who had a Smith-Corona typewriter owned the daisy wheel that made this font.
What's more, the daisy wheel and typewriter combination used to type the letter to Wayne, displayed a unique anomaly — a small backward slash after each period. Police believe the anomaly may have been caused by a bent arm on the plastic daisy wheel.