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National Transportation Safety Board

Feds: Driver who crashed into softball team bus likely high

Federal transportation officials said Tuesday that they believe the driver of a semitrailer that crashed into a Texas college softball team's bus last year, killing four players, was likely high on synthetic drugs, although a blood test didn't confirm he had drugs in his system.

During a hearing in Washington, the National Transportation Safety Board voted 4-0 that the likely cause of the September 2014 head-on collision on a highway near Davis, Oklahoma, was the semitrailer driver's incapacitation, "likely stemming from his use of synthetic cannabinoids."

The truck driver, Russell Wayne Staley, was charged with four counts of first-degree manslaughter after the...