saturday, along with audio of a profanity-laced phone call between hostage negotiators and dykes. >> you just go ahead and send something down [ bleep ] to their death. >> reporter: the chilling audio gives us a better sense of dykes' state of mind as the days wore on and negotiations deterrierated. >> i mean whatever time it is, then, i will not talk [ bleep ]. >> reporter: dykes stormed a school bus on january 29th. a 15-year-old boy on the bus told dispatchers how a man had shot the driver and snatched one of the children. >> okay, is he on the bus or did he take the kid off the bus? >> he took the kid off the bus. >> reporter: the bus driver, charles poland was later hailed a hero for trying to protect his young passengers. >> was the bus driver the only person that was shot? >> yes, ma'am.