“I don’t understand why he did it,” says Cristina Kirchner’s attacker’s girlfriend 0:50 (CNN Spanish) — A source from the Argentine Federal Police with direct knowledge of the investigation of the attack against Vice President Cristina Fernández de Kirchner, told CNN that Brenda Elizabeth Uliarte, the girlfriend of the man arrested for the attack, Fernando Andre Sabag, was arrested on Sunday. The same source told CNN that the woman’s arrest is related to the investigation of the attack against the official. CNN is trying to find out if the detainee has legal representation. Information by Ignacio Grimaldi News in development…