Mexican Mass Grave May Be Tied to Abductions MEXICO CITY - A mass grave has been found near here, the authorities said Thursday, and they are investigating whether the victims are a group of young people kidnapped en masse from a bar in May, a crime that shocked and perplexed a capital city not accustomed to such brazen violence. The city's chief prosecutor, Rodolfo Ríos Garza, said it would take at least two days to analyze evidence and identify the bodies, found Wednesday east of downtown, in the town of Tlalmanalco; at least seven have been excavated but officials said there could be more. The 12 young people were abducted from the Heaven bar in a popular nightclub district steps away from Paseo de la Reforma, a major thoroughfare. It was the kind of kidnapping that occurs more often in areas of the country in the throes of the drug war but less so in the capital. Mexican news media have focused on the group's connection to the city's Tepito neighborhood, a rough slum synonymous with crime and contraband. News reports said some of the abducted had connections to drug dealers, though their families have said they were not criminals. Relatives have staged protests to complain about the investigation's slow progress. A spokesman for the city's prosecutor's office said five suspects were in custody. Ricardo Martínez Chávez, a lawyer for the families of some of those abducted, told CNN Mexico on Thursday that one suspect had led the authorities to the mass grave. Mexico's attorney general, Jesús Murillo Karam, said that the authorities found the mass grave during an investigation into a tip about arms trafficking in the area. Mr. Ríos Garza did not disclose any information about the bodies found Wednesday. Another mass grave, which contained five bodies, was found in the same area in 2011.