Zodiac Cipher – The Monster of Florence’s secret is Operation Gladio – (5 of 6) 1982 to 1983 ; (6 of 6) 1984 to 1985 Posted on January 7, 2015 Leave a Comment Victims – 2 couples: July 29, 1984: Claudio Stefanacci (21) and Pia Gilda Rontini (18) September 7-8, 1985: Jean Michel Kraveichvili (25) and Nadine Mauriot (36)