Passage: Capone initially became involved with small-time gangs that included the Junior Forty Thieves and the Bowery Boys. He then joined the Brooklyn Rippers, and then the powerful Five Points Gang based in Lower Manhattan. During this time, he was employed and mentored by fellow racketeer Frankie Yale, a bartender in a Coney Island dance hall and saloon called the Harvard Inn. Capone inadvertently insulted a woman while working the door at a Brooklyn night club and was slashed by her brother Frank Gallucio. The wounds led to the nickname "Scarface" which Capone loathed. When he was photographed, he hid the scarred left side of his face, saying that the injuries were war wounds. He was called "Snorky" by his closest friends, a term for a sharp dresser.

Question: Who was Capone's mentor?
Frankie Yale