Mexican officials have arrested Sidronio Casarrubias Salgado, the purported leader of the Guerreros Unidos drug gang suspected of acting with local police in taking away 43 students in the southern state of Guerrero. He was detained on a ...

An apparent breakthrough in the investigation ...After dozens of arrests ...... they now have an alleged gang leader in captivity ...... Sidronio Salgado is a key suspect inthe mystery of the disappearance last month of 43 students in the south of the country.Tomas Zeron, Mexico's Federal Chief of Criminal Investigations:"Sidronio Casarrubias Salgado was detained in a coordinated effort by Federal forces. He is top leader of the Guerrero Unidos criminal group. And was arrested in the presence of one of his closest associates."Though a new line of investigation opens with the arrest - the captive has said he did not order the attack.Jesus Murillo Karam, Mexico's Attorney General: "He says that no, that he was informed about the students, but that he did not order their disappearance. He also wasn't opposed to it, he acknowledges this in his statement. But he does not say that he had supported it, he says that it was a casual situation, and I won't give any more information about this because it would affect the investigation."The students went missing after a clash with local police in the city of Iguala on the 26th of September.The police are believed to have turned the STUDENTS over to the Guerreros Unidos gang.Around 36 officers and 17 alleged gang members have been arrested so far.Amid fears for the students' lives, Mexicans have protested nationwide over the lastweek.Saying "they took them alive, we want them back alive".With key suspects still on the run, they want the regional governor to quit.