Michael Thomas Cullen II, 37, of Warsaw, Va., and his 15-year-old son suffered potentially life-threatening injuries in Tuesday’s crash, which happened around 4:55 p.m. in the Millersville/Gambrills area of the county, police said.
Seven passenger vehicles and one commercial vehicle, a flat-bed delivery truck, were involved in a chain reaction of collisions on southbound Route 3 near the Route 32 overpass, beginning when the delivery truck rear-ended Cullen’s car.
Cullen’s girlfriend, 37-year-old Bethany Dawn Dempsey, was killed in the crash. Also killed were Cullen’s 7-year-old daughter Abigail Randi Cullen and Dempsey’s 14-year-old daughter Lauren White.
Cullen and his son are listed in critical but stable condition at a local shock trauma center.
Four people in the other involved vehicles were treated for minor injuries, authorities said.
The driver of the truck, identified as 36-year-old Jason Nathaniel Pagaypya of Waldorf, Md., was not injured in the crash, police said.
According to authorities, drugs and alcohol do not appear to have been factors in the crash, and Pagaypya was driving near the posted speed limit of 50 mph.
Investigators said the cause of the crash was likely driver error; it appears that Pagaypya did not slow down as traffic approached a signal.
No charges have been filed, but police said investigators are consulting with the State Attorney’s Office and that the investigation is ongoing.