document: Young boy among 4 killed at Mexico burrito stand CIUDAD JUAREZ , Mexico -LRB- AP -RRB- - Gunmen opened fire on a burrito truck in this border city , killing the vendor , his 10-year-old son and two other people Friday , a day after an attack on a nearby bar resulted in 10 deaths . The bright red food truck sat just yards -LRB- meters -RRB- from an elementary school where children were at gym class in an outdoor patio , said Arturo Sandoval , a spokesman for the Chihuahua state attorney general 's office . Panicked parents attending a meeting at the school grabbed their children and ran . Maria del Socorro , the mother of a fifth grader , was inside the school when she heard the gunfire . '' `` I went directly to the patio to get my son , '' '' del Socorro said . '' `` I am dying of fear . I still have n't recovered . '' '' The motive of the shooting - and the target - were unknown . Sandoval said the two other slain adults were men between the ages of 25 and 30 who were eating at tables next to the truck . They wore what looked like workers ' uniforms from a beer company . The burrito vendor 's body was found inside the truck , while his son lay dead outside . A fifth man was wounded and taken to a hospital . Del Socorro said rumors swirled that a child from the school had been killed but she later learned he was the burrito vendor 's son . '' `` He was n't from the school , but imagine , he was a boy , an innocent boy , '' '' she said , adding that she did n't know whether she would take her son to school Monday . '' `` This city gets worse and worse . They kill in the parks , they kill in the streets . We ca n't go out , and now it 's almost inside the patio of the schools , '' '' del Socorro said , fighting back tears . Ciudad Juarez , a city across from El Paso , Texas , has been wracked by a turf war between the Sinaloa and Juarez drug cartels . More than 3,000 people were killed in the city of 1.3 million residents in 2010 . Hours before the attack on the burrito truck , gunmen assaulted a bar in the same neighborhood . Sandoval said the death toll from that attack rose to 10 Friday after two more people died from their wounds . Sandoval said gunmen traveling in three cars arrived at the bar El Castillo late Thursday and opened fire . Police found more than 130 bullet casings at the scene . Children are increasingly falling victim to Mexico 's viscous drug war , which has claimed more than 34,000 lives since President Felipe Calderon launched a military a crackdown on drug cartels in 2006 . The nonprofit group Network for the Rights of Children in Mexico estimates 994 children and youths under 18 were killed between late 2006 and late 2010 , and says the number has risen since then . A 17-year-old boy was among seven people killed in three shootings around Monterrey , a city in the northeastern state of Nuevo Leon where the Gulf and Zetas drug gangs are waging territorial battles . State Public Safety spokesman Jorge Domene said the teenager was gunned down in front of his girlfriend in downtown Monterrey . The motive for the attack was unknown . In the western state of Michoacan , meanwhile , four bullet-ridden bodies were found in different towns , state police reported . Two of the bodies were found with threatening messages signed by the '' `` Knights Templar , '' '' a new group that has claimed to be behind a recent spate of slayings in the Pacific coast state . The group claims to be a replacement for the weakened La Familia cartel . In western Colima state , prosecutors filed homicide and other charges against 15 people in connection with the assassination of a former governor , Silverio Cavazos . The federal Attorney General 's Office said in a statement that it arrested and charged five people in the November slaying . Colima Attorney General Yolanda Verduzco said state prosecutors had charged an additional 10 people , although it was unclear if they had been arrested . Investigators have not identified a motive for the assassination . Cavazos , who governed Colima between 2005 and 2009 , was gunned down while he chatted outside his home with an official from the current state government .
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