Hitmen strafe two women with machine guns, severed heads are dumped in garbage bags near the U.S. border and outside public offices in Acapulco, a police chief is gunned town in a Caribbean tourist resort. The grisly murders, all in the past week, are among the latest in an increasingly savage and spectacular wave of drug gang violence sweeping across Mexico as the country heads to the polls in a presidential vote on Sunday. The dead are victims of an all-out war between rival gangs for control of the multibillion-dollar cocaine, marijuana and amphetamine trade to the United States which...
