left his base and reportedly gunned down more than a dozen afghan civilians before dawn on sunday. that soldier, now in custody, accused of spraying bullets through two villages before burning some of the victims' bodies. the taliban saying in a statement on its website that it will, quote, take revenge from the invaders, and the savage murderers, for every single martyr. the president, president obama, calling the incident tragic, and shocking, the defense secretary, leon panetta, says an investigation is already underway. conor powell is live in kabul and we start with jennifer griffin at the pentagon for us. >> reporter: well, we know this accused shooter is a 38-year-old staff sergeant, meaning he was in charge of about six ole other soldiers, the father of two children, he served three tours in iraq, this was his first tour to r*f. he tphreufd december. he was working with special operations, green berets or navy seals to train afghans,