[...] when his family drove here from Maryland to pick him up and tried to pay the smugglers, the traffickers demanded an extra $900 for a total of $2,900 for his release. Posing as the man's relatives, deputy constables agreed to meet the suspects along Airline in north Houston and pay them the money in exchange for the man, Herman said. During the investigation, deputies learned the man had been held at a stash house in the 14000 block of Sellers Road.