Four search warrants filed in Roanoke County reveal branches of the investigation into the explosion and fire that recently destroyed a Buena Vista gas station, killing four people and injuring three others.
State police are seeking more information about a gasoline order delivered to the South River Market in Rockbridge County early on May 10, not long before the explosion.
Delivery was made at approximately 8:45 a.m. and the explosion happened at 9:23 a.m., the documents said.
The first search warrant, dated May 11, shows that investigators sought to examine business records between the market and its fuel distributor, including invoices, schedules and receipts.