10 Reasons Why Zodiac Killer MAY Have Been Solved
6. He Was A Roleplay Fanatic
Doerr apparently had a fondness for roleplay events, regularly attending renaissance festivals as pictured in the above image.
Why is this important? For one, it would plausibly explain why Doerr could have an executioner's hood - as worn by Zodiac when he attacked Bryan Hartnell and killed Cecelia Shepard at Lake Berryessa - in his possession if ever questioned about it, being part of an historical re-enactment and all.
But more curiously, there was in fact a renaissance faire happening in the San Francisco Bay Area the very same day that Zodiac struck at Lake Berryessa.
Though highly circumstantial, it's absolutely plausible that Doerr attended the faire, even in the very same or similar executioner garb, before driving the approximately two hours to Lake Berryessa and carrying out the attack there.