State Police say speed and alcohol are behind a deadly car crash in Castine that killed a Maine Maritime Academy student. The accident occured on Battle Avenue, which runs alongside the school. State Police say 18-year old Brett Gould of Carrabasset Valley was driving on Battle avenue last night, he lost control on a curve and his car crossed the center line, flipped over and hit a dirt embankment. Gould died at the scene. Two other students riding in the car escaped serious injury.