Exodus 21:23-2.
"But if there is harm, then you shall pay life for life, eye for eye, tooth for tooth, hand for hand, foot for foot, burn for burn, wound for wound, stripe for stripe."
Leviticus 24:19-21.
"Anyone who injures their neighbor is to be injured in the same manner: fracture for fracture, eye for eye, tooth for tooth. The one who has inflicted the injury must suffer the same injury."
His prison conditions have already been written by himself? 12 years is likely a life sentence many times over.