Jimmy Peake, a.k.a. Jazzman, was a gangster in Gotham City. Though not a "theme" villain like the Joker, Two-Face, or the Penguin, he did have the odd eccentricity of using a lot of music-related terms in his speech.
Jimmy Peake was a gangster in Gotham City involved in an illegal smuggling operation six years ago. When Lieutenant James Gordon busted Peake, Peake swore revenge upon being delivered to the authorities.
Six years later, Peake, now Jazzman, initiated a drug sale and lured the Police Department to a trap. When Gordon was set to get Jazzman, he was severely wounded and taken to the hospital as Batman subdued Jazzman.
Due to Gotham City Jail being overcrowded at the time, Judge Maria Vargas sentenced Jazzman to Stonegate Penitentiary to await trial. However, Jazzman escaped and instead of fleeing, he went straight to Gotham Hospital to finish off Gordon. Fortunately, Batman intervened and a brutal fight ensued between the two vengeful foes. Batman threw the Jazzman through the hospital window into Gordon's room, and the Jazzman almost shot Gordon had it not been for Batman destroying the gun at the final moment with a well-aimed Batarang. Harvey Bullock arrived and immediately arrested the Jazzman.