Marsha, the Supremes made no excuse for murder. They said that mitigating circumstances (PTSD, combat, etc.) provided reasons for reducing the penalty. Huge difference.

Yes, we trained this man to be a killer. However, he voluntarily joined and as has been said before, there are millions more who were trained that did not kill women and children in a cold blooded way.
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"You're not a g*dda*n looney Martini, you're a fisherman"

R.P. McMurphy - One Flew Over The Cuckoo's Nest