The United States Postal Inspection Service is offering a reward in the investigation of a mail carrier who was robbed at gunpoint during a route in Denver.
According to investigators, the letter carrier was near 2326 N. Clay Street in Denver about 5:20 p.m. on Sept. 14 when approached by a suspect who had a gun.
The carrier told authorities that the suspect brandished a firearm during the robbery and then ran away…