Sell it back to me
We never thought that a friend would steal from us and then after being caught red-handed, would attempt to sell your stuff back to us. That’s something that a bully would do or a criminal who knows you won’t attack them. Seems like respect is nowhere to be found here.
We think that they should either tell their parents or try to get it back and then break all contact. The last thing you want in your life is a so-called friend who does things like this. You can never trust them to be alone in your house ever again when you aren’t looking.