I just saw this reviewed with the author on The Daily Show.
The title "Mad Ones" comes from a Jack Kerouac quote about the Beats.
Joey Gallo wrote poetry, argued about the meaning of life, dug jazz and read Camus.
Also, he was handy with a chain whip, had a talent for extortion and bit the ear off a jailhouse enemy.
Part thug, part beatnik - Gallo lived in two worlds that really didn't overlap too well.
Bob Dylan's song Joey is about Joey Gallo.