Right here.

"I purchased a gun several years ago, when I became concerned for the safety of my young family after receiving a verbal racial assault in our 21st century Northern California neighborhood. Perhaps I am the only Stanford Law professor who owns guns, including the one that once graced my father’s lap on that porch forty years ago. As an American, I am grateful for that gun. I am also grateful for the four black men who have made it possible for my sons to sleep at night, secure in the knowledge that I, and it, will do what is necessary to protect them."

Hat tip to reader Alice Beard...