To continue reading up to 10 premium articles, you must register , or sign up and take advantage of this exclusive offer: MEXICO CITY – Western Mexico’s plague of violence continued on Christmas Day with the discovery of six decapitated heads in one state and the slaying of seven people in another. The Michoacan state prosecutor’s office said the six heads were found in Jiquilpan, a municipality near the state of Jalisco in a region that has been a battleground between competing drug gangs in recent years.