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A woman holds a portrait of a deceased or missing loved one as people gather at Border Field State Park, which separates the cities of San Diego and Tijuana, at the US-Mexico border on August 12, 2012 in San Diego, California, to launch 'caravan for peace' across the United States in a month-long campaign to protest the two countries' brutal drug war. The caravan departed from Tijuana with about 250 participants and is due to end in Washington on September 10.
Investigators in Tijuana made a gruesome discovery over the last week. Authorities have located two mass graves containing potentially hundreds of dissolved human remains.
But within the tragedy, there is also some hope for families in Baja California, whose loved ones have been kidnapped or "disappeared."
Reporter Erin Siegal from the Fronteras Desk has more.