James "Jimmy" Peake, a.k.a. Jazzman, was a gangster in Gotham City. Though not a typical "theme" villain, 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. When Lieutenant James Gordon busted him, Peake swore revenge upon being delivered to the authorities. He later revealed to a fellow criminal that the aborted smuggling racket would have been "the greatest score of his career"; hence the motivation behind the vendetta against Gordon.
Six years later, Peake, now Jazzman, initiated a drug sale and lured the Police Department into a trap. When Gordon was set to get Jazzman, he was severely wounded and taken to the hospital as Batman subdued the gangster.
Due to Gotham City Jail being overcrowded at the time, Judge Maria Vargas remanded 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. Jazzman would have finished Gordon off 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.