While on duty around 1:30 a.m. Sept. 18, Monreal picked up the cocaine from smugglers in a wash near the San Miguel Gate, a border crossing used by members of the Tohono O’odham Nation, and handed them the first payment of $334,000, the FBI special agent wrote. He kept the cocaine in his agency vehicle for the rest of his shift before turning it over to another smuggler. Four days later, he went back to the border while on duty and handed over $317,000 to the smugglers. Monreal’s payment was 6 pounds of narcotics and $66,000, the FBI special agent wrote.