I read the other day, that Callay had never shown remorse for the killings. And with the stories of the alleged massacre of the kids in Afghanistan I visited the wiki page for Callay. He pulled the trigger, but he was still a scape goat.
Calley, a young, unemployed college dropout, as an example of the raw and inexperienced recruits being rushed through officer training.
William L. Calley — 2nd Lieutenant, Platoon Leader of 1st Platoon, Charlie Company, the only person convicted of murder. On August 19 2009 Calley became the first person ever to apologize for the massacre. “There is not a day that goes by that I do not feel remorse for what happened that day in My Lai,” Calley told members of the Kiwanis Club of Greater Columbus, “I feel remorse for the Vietnamese who were killed, for their families, for the American soldiers involved and their families. I am very sorry.”<44>
http://en.wikipedia.org/wiki/My_Lai_Massacre