 This is WFMD News. Maryland State Police continue to investigate a fatal crash in Frederick County on Tuesday morning involving an overturned tractor trailer. Around 7.45 a.m., troopers responded to Raven Rock Road near Fort Ritchie Road for a vehicle accident. The driver of the truck is identified as 41-year-old Daniel Ryan of Ridgely, West Virginia, and he was pronounced dead at the scene. The roadway was closed down for several hours while troopers conducted their investigation.