Zodiac akapfuurira kutaura kuti akanga asiri iye anokonzera kuputika kwebhomba kwechangobva kuitika muhofisi yemapurisa muSan Francisco (achitaura nezvekufa kwaFebruary 18, 1970, Sgt. Brian McDonnell mazuva maviri mushure mekuputika kwebhomba paPark Station muGolden Gate Park) asi akawedzera kuti "pane kubwinya kukuru kuuraya mapurisa kupfuura [sic] nokuti mapurisa anogona kudzoka". Tsamba yacho yaisanganisira bhomba rebhomba reZodiac raakati aizoshandisa kuputika chikoro. Pasi pebhazi, akanyora kuti: "Zita rangu ndi _____", rakatevera nekodhi yebhazi rakabudiswa musi waApril 28, 1970, rakateverwa nekodhi ye 13-character. Zodiac akapfuurira kutaura kuti akanga asiri iye anokonzera kuputika kwebhomba kuchangobva kuitika muhofisi yemapurisa muSan Francisco (achitaura nezvekufa kwaFebruary 18, 1970, Sgt. Brian McDonnell mazuva maviri mushure mekuputika kwebhomba paPark Station muGolden Gate Park) asi akawedzera kuti "pane mbiri pakuuraya mupurisa kupfuura [sic] nokuti mupurisa
= 12, SFPD = 0.