UPDATE.... OXFORD, Miss. (WTVA) -- A Tishomingo man is now charged with DUI-manslaughter in a traffic accident Wednesday on the Natchez Trace Parkway in Prentiss County.
Rangers says Donnie William Sartain, 49, made an appearance before a federal magistrate in Oxford Thursday.
He is charged in the deaths of Pauline Demers, 56, and Gerald Nault, 56, of Sherbrooke, Quebec, Canada.
Court documents say Sartain was impaired when he was driving his pickup on the Parkway near mile marker 289 around 4:15 Wednesday afternoon.
The truck crossed the center line and collided head-on with a motorcycle with Demers and Nault on board.
The two died at the scene of the accident.
Sartain was taken into custody after failing sobriety tests and registering above the legal limit on two seperate breathe tests.
Rangers say more charges could still be filed in connection with the accident.