Monica Ortiz Uribe

Mexico's war with drug cartels has left more than 30,000 people dead over the past four years; in 2010 in Juarez alone, more than 3,000 died. Many of those killed are involved in criminal gangs. But many caught in the crossfire are innocent bystanders or victims of mistaken identity.

Mexico's war with drug cartels has killed more than 30,000 people in the past four years. Many were gang members or somehow tied to the cartels; others were random bystanders. They include two teenagers who lived on opposite sides of the U.S.-Mexico border in very different worlds.

Mexican and U.S. leaders have vowed to track down the gunmen who killed three people, including two U.S. citizens, with ties to the U.S. Consulate in the border town of Juarez. Mexican authorities say they believe the killings are linked to the country's raging drug war.