He certainly looked guilty of something, and as if he'd finally been caught. With either his head down or with a kind of scared, dead-eyed stare, in a white jumpsuit, in front of the four Veracruz state police officers crowded behind him. They were all in black uniforms, with a strip of face and eyes showing through black masks, with four matte black assault rifles menacingly at the ready to guard a slim man in handcuffs. (Actually, had there been any gunfire, the police were so over-armed and so close together that it's likely one of them would have been the first victim.) Still, it all looked good for the cameras and reporters summoned to hear about the man's arrest and the end of a most doggedly troublesome case for state officials: the murder of Regina Martínez Pérez on April 28 last year.