Dennis Lehane, American author, screenwriter, and producer
Dennis Lehane (born August 4, 1965) is an American author. He has published more than a dozen novels; the first several were a series of mysteries featuring a couple of protagonists and other recurring characters, including A Drink Before the War. Of these, four were adapted as films of the same name: 2003's Mystic River, directed by Clint Eastwood, which won several awards; 2007's Gone Baby Gone; 2010's Shutter Island directed by Martin Scorsese and 2016’s Live by Night directed by Ben Affleck.