A 31-year-old Mountain Home man has been charged with vehicular manslaughter and driving under the influence after a crash that killed his 2-year-old son.
The Idaho Statesman reports that authorities filed the charges Wednesday against Lawrence Lutton.
Idaho State Police say that on May 23 Lutton lost control of his vehicle while rounding a curve on Arrowrock Road, a narrow two-lane dirt road.
The vehicle hit an embankment, overturned and went into Arrowrock Reservoir.
Riley Lutton died three days later at a Boise hospital. He had been strapped into a safety seat. A 5-year-old brother survived.
Authorities report that Lawrence Lutton had a blood-alcohol content of 0.092, above the legal limit of 0.08.
He's scheduled to be arraigned on Aug. 11.