Update: A Washington County murder suspect â who ultimately committed suicide â tried to get an acquaintance in Kingsport to buy him supplies for a getaway, but the suspectâs debit card was declined, according to new information released Thursday afternoon. Ralph Eugene Davenport, 480 Ford Creek Road, Apt. 8, Gray, was suspected of killing Leslie Dawn Belt, 43, Tuesday afternoon. He left that scene in a white work-type van, which has since been located in Kingsport. Washington County Chief Deputy Leighta Laitinen said her department received information around 8 a.m. Thursday from Kingsport police about an acquaintance of Davenportâs reporting their encounter. âWe sent two investigators to interview the individual ... he stated that Davenport showed up at his house (but) he was not driving the white van,â she said.