Russ, if you had shot him, he wouldn't be suing you now.
A man intrudes in your business, armed, late at night, tries to rob you. You defend yourself, being severely wounded, probably for life, in the process. Then he sues you for hurting him. And you still feel sorry for him. Only in America!
God Bless you my friend, you are a way bigger person than I am!
DonM