NEW HAVEN, Conn. (CBSNewYork) – Police have ruled out alcohol as a factor in Saturday’s tailgating tragedy at Yale.

Police announced Sunday that driver Brandon Ross, who was behind the wheel of a U-Haul truck that plowed into a crowd at the Harvard-Yale football game, passed a sobriety test.

Of the three women injured in the collision, 30-year-old Nancy Barry of Salem, Massachusetts died in the collision, and one other remains hospitalized.

Investigators are examining the truck for defects.

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