Article Photos: Negotiators talking to Ala. captor through pipe 15/20

The Dothan Police Department Bomb Squad van rolls into a checkpoint in Pinckard, Ala., below the home where Tuesday's school bus shooting suspect is barricaded in a bunker with a five-year-old boy as a hostage Thursday, Jan. 31, 2013. Speaking into a 4-inch-wide ventilation pipe, hostage negotiators tried Thursday to talk a man into releasing a kindergartener and ending a standoff in an underground bunker that stretched into its third day. (AP Photo/The Dothan Eagle, Jay Hare)