(CNN) —

(CNN) — Cindy Sheehan, the California mother who became an anti-war leader after her son was killed in Iraq, declared Monday she was walking away from the peace movement.
She said her son died “for nothing.”
“I have tried ever since he died to make his sacrifice meaningful,” she wrote. “Casey died for a country which cares more about who will be the next American Idol than how many people will be killed in the next few months while Democrats and Republicans play politics with human lives.