and siblings was searched for hours. bomb squad and canine unit inside the home. this picture showing a woman taken away in handcuffs, not arrested, but as a precaution. karen jones lives right next door. >> it was pretty scary, because you don't know what they're going to find. >> reporter: karen has known the family ever since they moved in about 14 years ago. when was the last time you saw mohammad? >> probably this weekend. i can't remember which day. >> reporter: but it was this weekend, though? >> yes. >> reporter: the gunman no longer lived in the home but according to his neighbor visited quite a bit. karen jones saying this weekend visit was routine. >> except for the beard. he didn't usually wear that. guys like to grow beards once in a while, and he's of age. >> reporter: gary tuchman, cnn, chattanooga, tennessee. >> we are also learning more about the gunman's last stand with police on thursday. let's bring in our cnn military analyst, lieutenant colonel luke