SHIRLEY (CBS) – A tour bus was on its way back to Gardner, returning from a trip to the Red Hook Brewery in New Hampshire, when two passengers fell out of the bathroom window and onto Route 2 in Shirley on Saturday night.

Thomas Johnson of Gardner was killed while Seth Davis of Winchendon was critically injured.

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WBZ-TV’s Paul Burton reports.

State Police Sgt. Matt Murray said a trooper in the area discovered the victims on the highway.

Tom Johnson was killed in the accident.

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“Two men lying in the breakdown lane in this area,” said Sgt. Murray. “He called for additional resources. Nearly simultaneously, a bus driver for Colonial Tours in Boston contacted the state police and reported that someone had fallen out of his bus.”

WBZ NewsRadio 1030’s Kim Tunnicliffe reports.

Sgt. Murray said alcohol was believed to have been a contributing factor.

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“There was some form of altercation, whether it was just a low-level friendly altercation, or it was a full-blown violent altercation, that is something that the investigators are attempting to determine,” said Sgt. Murray.