4. The Monster of Florence
Number of Victims: at least 16
In between 1968 to 1985, a series of murders took place in Florence, Italy. The main targets were couples, and the same gun was used in all murders. After the first murder has allegedly been resolved, another couple was found in 1974 with various gunshot wounds and stab wounds. The killings continued again over the next decade and reports were filed in about friends encountering a strange man a few days before the victims’ deaths. And now, let’s see the top three netries in our list of most successful serial killers who have never been caught.
