Lifeguard by James Patterson

Like any James Patterson I've read, this is an intriguing, don't-want-to-put-it-down mystery. Lifeguard, set in South Florida, is the story of Ned Kelly, a guy who is pretty much unsuccessful at everything he tries. But when he meets a woman whom he thinks is the love of his life, it somehow manages to get much worse. Before he knows it, Ned is accused of murdering just about everyone he knows. With the help of an FBI art agent, he fights back but not before digging himself quite a hole. It's sink or swim but lucky for poor old Ned, he's a lifeguard.