civilians. a pentagon investigation said everybody died as a result of a single suicide bomber blast. but a cnn investigation now raises hard questions about whether the attack has been fully investigated. a full warning, this report contains graphic images and may be disturbing to some viewers. cnn s nick peyton walsh has more. reporter: a blast into the crowd. i saw a lot of hands, legs without their bodies. reporter: at least 170 afghans and 13 u.s. troops died after an isis suicide bomber struck outside kabul airport. the pentagon investigation of the attack released friday said everyone died in the blast. the single explosive device killed at least 170 afghan civilians and 13 u.s.
the dense crowd. the very high bomb blast sound and then i saw a lot of hands, legs without their bodies. at least 170 afghans and 13 u.s. troops died after an isis suicide bomber struck outside kabul airport. the pentagon investigation of the attack released friday said everyone died in the blast. the single explosive device killed at least 170 afghan civilians and 13 u.s. service members. by explosively directing ball bearings through a packed crowd. reporter: a review unearthed this brief glimpse of the bomber. cnn spent four months investigating the incident reviewing medical records and analyzing video, photos, and audio of the scene and speaking to over 70 witnesses or families of the dead, doctors, hospitals staff and survivors who insist some of the dead and wounded were shot.
into the attack raises serious questions about whether that has been investigated fully. here is cnn s nick payton walsh. i have to warn you this report contains graphic images that may be disturbing. reporter: the blast tore into the dense crowd. the very high bomb blast sound and then i saw a lot of hands, legs without their bodies. at least 170 afghans and 13 u.s. troops died after an isis suicide bomber struck outside kabul airport. the pentagon investigation of the attack released friday said everyone died in the blast. the single explosive device killed at least 170 afghan civilians and 13 u.s. service members. by explosively directing ball bearings through a packed crowd. reporter: a review unearthed this brief glimpse of the bomber. cnn spent four months investigating the incident
questions about whether that has been investigated fully. nick peyton walsh has our report and a warning that this contains graphic images. reporter: a blast into the crowd. dead people. i saw a lot of hands, legs without their bodies. reporter: at least 170 afghans and 13 u.s. troops died after an isis suicide bomber struck outside kabul airport. the pentagon investigation of the attack released friday said everyone died in the blast. the single explosive device killed at least 170 afghan civilians and 13 u.s. service members by explosion civilly directing ball bearings through a packed crowd and through our men and women. reporter: there was this brief glimpse of the bomber. cnn spent four months investigating the incident,
looks like al-qaeda are, too. this footage shows osama bin laden s former security chief, amin al haq, returning to his homeland from pakistan. it s been verified by the un. despite repeated requests to the haqqani network for an interview, they did not agree to one. the taliban continue to insist they have no links with al-anda, and will not shelter them. but there s another terror threat that s already very real. islamic state in afghanistan, or is k. it killed at least 182 people, including 13 us soldiers, outside kabul airport during the evacuation. and despite taliban claims to be fighting back, a week ago, more than 50 died in a suicide bombing at a shia mosque in kunduz.