Wi-Fi device detection

He is related…
Oh man....that's usually the worse kind. I pulled a gun on my pos son in law twice over the years. The 2nd time he called the cops on me when we were at a house fire where he was suspect. The cops were on my tail about half way home when they stopped me just as I turned onto the street I live on. After about 5 minutes of questions and conversation they ask me if I wanted them to go back to the house that was no longer on fire since my daughter had visible bruises which were mostly likely inflicted by him. Told the officers that I wasn't going to ask them to do that but I wouldn't complain if they did and they did. He's druggie and abusive and has been in jail many times and one time because I called the cops when the county let him out with a pending warrant....(Harris County jailers don't seen to have their stuff together.) that happened over 15 years ago and haven't heard from him since and the daughter finally saw the light and left him. She's still legally married to him but has been 'hiding' from him for about 10 years now.