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Greyhound stop (copy)

A Greyhound bus stop in Wisconsin Dells is shown in this January 2017 file photo.

A Colorado man is facing charges in Sauk County after authorities say he caused a disturbance on a bus and later attacked officers following what may have been a drug overdose.

The Sauk County District Attorney’s Office has charged Charles J. Marsh, 36, of Aurora, Colo., with attempted battery of an officer, discharging bodily fluids at a public safety worker, resisting an officer, and two counts of disorderly conduct.

A trooper with the Wisconsin State Patrol reports that he was called to an interstate exit ramp in the town of Lake Delton around 3:30 a.m. on Sept. 8. A Greyhound bus driver reported that a passenger was disorderly, combative, and hallucinating.

The bus driver said a passenger, later identified as Marsh, had begun shouting, causing a disturbance, and at one point walked toward the front of the bus and hit a safety barrier, according to the criminal complaint.

The trooper reported that Marsh was “staring into space with his eyes wide open and mouth hanging down.” Marsh allegedly told the officer he last remembered being at a psychiatric hospital, but did not know if he was on any drugs.

While walking to an ambulance to get examined, the trooper reported, Marsh attempted to run into traffic but later stopped at the front of a police car.

While ambulance workers were examining Marsh, the complaint states, he began acting erratic by “throwing his hands in the air,” screaming “anhydrous ammonia” and shaking as if he was having a seizure.

An officer reported finding a can of Snuggles Air Wick, a scented oil air freshener, inside Marsh’s bag. The complaint states that he had a white substance on his upper lip and hand.

Marsh was transported to the hospital, where officers said his erratic behavior continued. He allegedly kept repeating “anhydrous ammonia” and saying it was “like my very first time.” At one point, he said he was “going to lose it” and began flailing his hands around, the complaint states.

While attempting to secure him in restraints, the trooper reported, Marsh attempted to punch him in the head but missed. He also allegedly spit in the face of an ambulance worker. Marsh is due to appear in court Nov. 14.

Follow Tim Damos on Twitter @timdamos or contact him at 608-745-3513.

Reporter for the Baraboo News Republic.