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Acting U.S. Attorney Michael Reap says Giammanco made off with amounts ranging from $1,300 at one bank to $26,000 at another. Seven of the robberies were in St. Louis County, five in St. Charles County.
Giammanco earned the nickname because he twice wore military-style, floppy-brimmed "Boonie" hats during robberies. Other times, he wore suit jackets or other nice clothing.
After his capture in September, authorities described the 45-year-old Giammanco as an out-of-work construction worker.

