As an introduction to this suspect, one must first acquaint themselves with the forerunner to this story, 'Donald Lee Bujok-Zodiac Suspect', which details the thought processes the killer used in the design of the Halloween Card. Bearing in mind the killer is approaching his writings from a rationale different from the norm, the key to cracking his codes may lie in unconventional thinking, held naturally by very few individuals.
Kevin Robert Brooks also dissects the Exorcist Letter and subsequent S.L.A Letter, which he believes are inextricably linked by the word "Kill". It is a widely held belief that the footnote of the Exorcist Letter stating "Me-37 SFPD-0", is a reference to his murder count so far. If we believe that his victim total was in any way realistic, then who and where are all his victims, and why the three year hiatus from his previous correspondence? If the killer was incarcerated during this period, then murder on this magnitude is frankly implausible, if we are to believe the Exorcist Letter as genuine Zodiac material. Kevin Robert Brooks believes that the reference to "Me-37" is relevant to the age of Donald Lee Bujok, who would have been 37 years of age on January 29th 1974. Donald Lee Bujok was born on July 6th 1936
But another tantalizing clue lay in something Donald Lee Bujok could have retained from his brief spell at Fort Ord, before his medical discharge - this being the writing paper used at the military base.
Possibly the same paper used to author the Zodiac letter mailed to the San Francisco Chronicle on July 31st 1969, described on page 446 of Robert Graysmith's Zodiac Unmasked. The paper was described as so thin, that the overleaf became visible, and measured exactly 7 and 1/8 inches by 10 and 1/2 inches, identical to the Fort Ord stationary that Donald Lee Bujok would have had access to.
Kevin Robert Brooks, through careful and diligent research, is steadfast in his belief that Donald Lee Bujok is the Bay Area murderer - more confident than ever, that the breath of his killer, is the one that condensed in the chill of the Lake Herman Road night of December 20th 1968.