The Dunbar Armored robbery is considered to be the largest cash robbery in the history of the United States. It took place in 1997 at the Dunbar Armored facility in Los Angeles, California, from where the thieves left with $18.9 million. Allen Pace, who worked for Dunbar as a regional safety inspector, masterminded the robbery. Nevertheless, there was no happy ending for him since he was arrested and sentenced to twenty-four years in prison. Less than half the money was recovered, with $10 million still unaccounted for.