Payback

Description for PAYBACK by Lorenzo Carcaterra:

If there's one kind of person Tank Rizzo hates most in this world, it's a dirty cop. Criminals are at least honest about being dishonest; dirty cops are a disgrace to the badge they carry. Detective Eddie Kenwood is one such disgrace. He's got the highest signed-confession rate in the NYPD and a distinguished career built on putting men behind bars -- whether they're guilty or not doesn't matter much to him. When Tank's partner, Pearl, tells him about an old family friend Kenwood put in jail for a murder he didn't commit, Tank and Pearl vow to take Kenwood down.

Also in need of a takedown: the money-laundering accounting firm where Tank's brother used to work -- before he mysteriously died, leaving Tank the sole guardian of his nephew, Chris. Chris smells a rat, and enlists Tank's help to bring the men who had his father killed to justice.

Working two big cases means getting out the big guns, and Tank assembles his A-team. With help from a retired mobster, a professional boxer, a Chelsea psychic, a dog named Gus, and the U.S. Attorney -- not to mention his and Pearl's own quick wits and Chris's burgeoning skills as a computer whiz -- Tank gears up to take on his most dangerous and personal cases to date.

This is #2 in A Tank Rizzo Novel.