it looked like a normal home. this is almost a prefab community where the homes are similar. 55 plus community. everything is manicured. it is nestled in the hills. there isn't a good reason at least on the surface why this occurred. then when you speak to the family, you hear very much of that same sort of confusion. here's what the brother told us from florida. >> he was my brother. it's like an asteroid fell out of the sky. he had no machine guns when i moved him from melbourne to mesquite. to find out who he bought the machine guns from. again, there is no blaming. he bought the machine guns and he did this. i mean it was him who did this. no doubt about it. he was him. >> completely out of character?