Some other examples:

In 1919, in Kansas City, Paul Catanzaro shot and killed 11-year-old Frank Carramusa.
In 1948 in Corleone, Italy, mafia boss Michele Navarra poisoned 13-year-old Giuseppe Letizia who witnessed a murder committed on Navarra's orders, and was later brought to a hospital where Navarra worked as the chief doctor.
In 1961, in Palermo, 13-year-old Paolino Riccobono was shot and killed because of being related to some mafiosi involved in a local feud (his father and brother were already killed several year earlier).
In 1973, in Crotone (Calabria, Italy), Maria Giovanna Elia was killed by a stray bullet in a shootout between members of the Vrenna and Feudale 'ndrangheta families.
In 1986, Porto Empedocle (Sicily), Antonio Monreale and Filippo Gebbia were killed by stray bullets in an attack against members of the Grassonelli stidda clan (several stiddari were also killed in the attack)

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