Rampage, killing three adults and three adults, all 9 years old. this school, this church building was a target of the shooter. reporter: the morning of the mass shooting, surveillance video shows hale blasting out the glass doors to get access inside. video from 10:18 a.m. shows hale in the school hallway heavily armed, then near the children s ministry. the stunning body camera video shows the moments police arrived on scene. we have two kids that we don t know where they are. go, go! reporter: inside the school, sirens blaring as officers go from door to door. moments later, police confront the shooter on the second floor. then shots fired. by 10:27 a.m., police say the shooter was dead. 10:27 a.m. nothing that you just saw should
Heavily armed shooter, 28-year-old audrey hale, who police say identified as transgender. audrey bought seven firearms from five different local gun stores here legally. reporter: police say hale used three of those guns in the rampage, killing three adults and three students, all 9 years old. this school, this church building was a target of the shooter. reporter: authorities today revealing the shooter s parents were not aware hale was currently in possession of any gun. she was under care, a doctor s care for an emotional disorder. law enforcement knew nothing about the treatment she was receiving, but her parents felt that she should not own weapons. reporter: the morning of the mass shooting, surveillance video shows hale blasting out the glass doors to get access inside. video from 10:18 a.m. shows hale in the school hallway, heavily armed. then near the children s ministry. the stunning body camera video shows the moment police arrived on scene. the kids are all lo