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 recurring characters, including A Drink Before the War. Of these, four were adapted as films of the same name: Clint Eastwood's Mystic River (2003), Martin Scorsese's Shutter Island (2010), and Gone Baby Gone (2007) and Live by Night (2016), both directed by Ben Affleck. Source: Wikipedia (en)