Police were back on U.S. 460, where Deputy Thacker lost his life.
Officials were trying to reconstruct the accident and try to figure out exactly what caused the deadly crash.
It happened Monday night, when an SUV crashed into a police cruiser, killing Sheriff's deputy James Thacker.
“He lost control of his vehicle. Once he lost control of the vehicle it crossed the center line into the eastbound lane of travel,” Trooper Shaun Little said.
By Wednesday, Kentucky State Police investigators were back on the scene of the accident trying to figure out exactly what happened.
“Today we're coming back and looking at any evidence that we feel could have been missed that night,” Detective Eddie Crum said.
Police say by reconstructing the scene, they can get a clearer picture of the events that took place.
Investigators say they won't know much for about two weeks, but they say these investigations help them to determine factors such as speed and whose fault the crash actually was.
Police say they will review all the evidence gathered to come up with a preliminary report on Monday night's events.
Officials at Pikeville Medical Center say the driver of the SUV has been released from the hospital.
Police do not know at this time if any charges will be filed.