Infamous by Ace Atkins

First Line: They'd barely made it out of Arkansas alive after nabbing Frank "Jelly" Nash inside the White Front Cafe, a known hangout for grifters, thieves, and assorted hoodlums vacationing in Hot Springs.

Ace Atkins writes a blend of historical novel and crime story in this story about George "Machine Gun" Kelly in 1933.
Ace Atkins: http://www.aceatkins.com/ has written other novels based on historical events including: White Shadow, 1955 murder of Charlie Wall; Wicked City, 1954 murder of Albert Patterson; and Devil's Garden, 1921 Roscoe "Fatty" Arbuckle Case.