Hector David Herrera Martinez sticks by this story: Someone left on his doorstep the $283,473 that Kimble County sheriff's deputies found in the car he was driving. But authorities believe Herrera, 40, had illicit intentions in mind –- traveling to Mexico without reporting the cash that deputies near Junction seized following a traffic stop on Feb. 17. A federal grand jury in San Antonio indicted Herrera this week on a charge of smuggling bulk currency, and he's expected to make his first federal court appearance in San Antonio in the coming week. Herrera, who lists an address in Bartlesville, Okla.,...