The paint was easily removed as the painting was heavily varnished. It is believed that Shafrazi was protesting the announcement, the day before, of the release on bail of U.S. lieutenant William Calley. Calley, then under house arrest following his conviction, in 1971, for his part in the My Lai massacre in Vietnam, had petitioned for habeas corpus; he had initially been sentenced to life imprisonment. Although his appeal was overturned in June, he was finally released from U.S. Army custody later in the year after having received a limited pardon from Richard Nixon.