Investigators are trying to determine why an Effingham County man did not see or hear a train that struck and killed him Friday night.

Marcus Jackson, 21, of Clyo was hit by a Norfolk Southern train around 8 p.m. Friday at the intersection of Springfield-Egypt and Bethel roads.

The Effingham County Sheriff’s Office and Norfolk Southern are both investigating, but "there are no signs of any foul play," said ECSO spokesman Detective David Ehsanipoor.

The engineer told investigators that the train was traveling approximately 45 miles per hour. The engineer said he sounded the horn and tried to slow the train when he saw a man walking alone on the tracks.

"He said he tried giving the guy a warning, but he never even turned around," Ehsanipoor said.

Jackson might have been too distracted to hear the horn. Earbuds, small headphones, were found near the scene of the accident.

"We’re not sure if he was wearing them at the time or not," Eshanipoor said.

An autopsy is scheduled to be done today at the Georgia Bureau of Investigation Crime Lab in Savannah, to determine if Jackson could have been impaired by anything in his system.

The train engineer does not appear to be at fault, Ehsanipoor said, but the ECSO and Norfolk Southern will continue to investigate.