Question for readers of John Grisham and similar authors

<p>At Thanksgiving some young-adult cousins were talking about a book by John Grisham or someone similar – I know Grisham was mentioned as were some other authors that I can’t recall. One of the books discussed was about an FBI agent that ended up being corrupted by the mafia people he was using as informants. Does anyone know what book this might be?</p>

<p>Could it have been The Brothers Bulger? This book is not fiction. It’s an account of the crimes of Whitey Bulger, who had not only the Boston police in his pocket but also the Boston office of the FBI. I know that at least one FBI agent went to prison. The book is also about William Bulger and his involvement in his brother’s crimes.</p>