The penitentiary Edward Edwards was referring to was Old Montana State Prison, approximately three-and-a-half miles west of Deer Lodge. Donald Lee Bujok had spent eleven years at the prison, serving time for the brutal slaying of Deputy Otto Fossen, who was shot five times in the neck and chest in the small town of Joplin, Montana on October 5th 1957. Built in 1871, Old Montana State Prison suffered badly with overcrowding, and prisoners daily life mirrored the bleak walls that confined them. The only solace was sought through work related activities and occasional visits to the W.A. Clark Theater, built in 1919 under the governance of Warden Conley. It seated around 600 and hosted a variety of events that included traveling theater groups, movies, concerts and religious services, providing temporary relief to inmates, who for the most part relied heavily on introspection to wile away the harsh realities that became an everyday occurrence. Donald Lee Bujok was no exception to this rule, performing many jobs within the prison, notably a kitchen clerk, upholsterer and garment maker, but in an attempt to escape his reality may have ascended to an altogether different level of existence, driven by a fascination for Egyptian literature and science fiction, apparent in the striking memoirs of Edward Wayne Edwards. Donald Lee Bujok, strangled by the rigors of daily life in prison sought his escape into the non-material realm of fantasy, embracing an afterlife that would eventually be realized a few years later in the very real world of Northern California, one dark December night in 1968.
Kevin Robert Brooks has examined in depth the early life of Donald Lee Bujok, that may have seeded the very inception of the Zodiac Killer, through to the numerous letters and cards he mailed to the San Francisco Chronicle, along with other associated publications - and believes his search for America's most notorious serial killer may be coming to an end. One such letter he has analyzed may possibly have marked the final chapter of this story, sent to the San Francisco Chronicle on January 29th 1974 - that of the Exorcist letter, believed by many to be the Zodiac Killer's final letter and impending epitaph.
In his later correspondence, his interest in the movies came to the forefront, mentioning the film Badlands, Red Phantom (El Espectro Rojo), possibly The Car (in a now unauthenticated letter sent on Wednesday October 28th 1987) and the Exorcist letter, ridiculing the William Friedkin horror film released in 1973. But the Exorcist correspondence encompassed both - reciting lines from The Mikado's Tit Willow, as well as embodying the movie angle into its design. The author also added Asian style characters at the foot of the letter, reminiscent of Japanese stylism. The Zodiac Killer used a blue felt tip pen when writing this letter, causing occasional filling on the circular letters. Kevin Robert Brooks believes the F style symbol to be the word "To", so when the symbols are reorganized, they spell the words "To Kill". Just above the symbols he wrote "PS if I do not see this note in your paper, I will do something nasty, which you know I'm capable of doing".
Below is a sketch created by Kevin Robert Brooks, taken from a photograph of Donald Lee Bujok aged in his late 40s.