
According to police on the scene, the man had five hostages and five pounds of C-4, a common plastic explosive, strapped to his wheelchair. Officers on the scene were encouraging the man to contact a hostage negotiator through 911.
Postal worker Walt Korndorfer said there was at least one hostage in the builiding. Supervisor Margie Austin, he said, was unaccounted for. The post master, he said, was out of the building when the shooting started.
Town police had blocked off a three-block square perimeter as officers outside the post office crouched behind vehicles, rifles at the ready. Police were working with the fire department and other agencies to evacuate Main Street just before 3 p.m. By quarter till four, a bomb squad had arrived and Virginia State Police had a helicopter in the air, circling downtown Wytheville. 911 operators around 3:45 p.m. advised employees at nearby businesses to get out of the buildings surrounding the post office.
A customer who was leaving the post office as the gunman entered, said he was in a wheelchair and driving a red truck with Marine Corps stickers. She reported that he had fired at police and had hand grenades. A sheriff’s office employee confirmed that there were grenades on the man’s truck.
http://www.swvatoday.com/news/article/breaking_news_gunman_holds_hostages_in_wytheville_post_office/6539/