The F.B.I. wants to search a computer belonging to a man who could have ties to a prostitute whose body was discovered along with three others near a long island beach.the laptop belongs to Akeem Cruz of Brooklyn. He is currently behind bars in Maine on an unrelated drug charge.Cruz was one of the last people to have been with 22-year-old Megan Waterman of Southern Maine. She disappeared after traveling to a hotel to meet clients for sex.Months later Waterman and three other prostitutes were found dead. Their remains scattered along a beach road.