There is one part of it that I want to be sure to point out:
According to family members, Johnston lived alone. Dozier says that Johnston did have a firearm. She says she took her aunt to get a permit for that firearm, for her own protection.
(My emphasis.) When the information gets sorted out, we will discover two things — that the police, if they announced, did not do so clearly or give a chance to respond, and we will find out that the justification for the warrant was that someone in the house had a handgun permit.
In other words, if you attempt to comply with the law and become properly licensed, you will be treated even more like a dangerous criminal.