The U. S. Postal Inspection Service says it is offering up to $50,000 for information leading to the arrest and conviction of the suspect(s) who recently shot USPS mail carriers with paintball guns in and around D. C. According to a press release, the assaults happened at the following locations and times: 3:15 p. m. in the area of 4800 B St. SE, Washington, DC. 4:30 p. m. in the area of 3900 1st St. SW, Washington, DC. 4:30 p. m. in the area of 100 Irvington St. SW, Washington, DC. 5:30 p. m.