NEW YORK - Musician David Crosby was arrested on marijuana and gun possession charges early Saturday at a Times Square hotel, police said. Crosby, 62, a two-time inductee to the Rock and Roll Hall of Fame, had checked out of the hotel but left a piece of luggage behind, police said. A hotel worker found the bag and went through it looking for identification, and called police after finding marijuana, a .45-caliber handgun and two knives, authorities said.