A Biddeford man who was arrested Sunday after police clocked his vehicle traveling at more than 110 mph on the Maine Turnpike has been charged with three federal crimes, authorities said.

Timothy Courtois, 49, was charged with making a false statement in connection with acquiring a firearm and two counts of possession of firearms by an unlawful user of controlled substances.

Courtois told Maine State Police on Sunday morning he was going to New Hampshire to shoot a former employer. He told police he had attended the "Batman" movie at the Cinemagic Theater in Saco on Saturday night with a loaded gun in his backpack.

Following his arrest, officers found six firearms and a substance believed to be “K2,” a synthetic form of marijuana, in his car.

A search of Courtois’ apartment in Biddeford revealed several additional firearms and thousands of rounds of ammunition. A later investigation showed that on July 20, 2012, Courtois bought a .223-caliber rifle from Cabela’s in Scarborough. When he purchased the rifle, Courtois asserted that he was not an unlawful user of controlled substances, even though he was using both marijuana and K2 at the time, according to a written release from the U.S. Attorney's Office in Portland.

Courtois faces up to 10 years in prison and a fine of up to $250,000 on each of the three charges if convicted, police said. He was in state custody Tuesday; an appearance on the federal charges hadn't been scheduled.

The investigation was being conducted by Maine State Police, the Bureau of Alcohol, Tobacco, Firearms and Explosives and the Federal Bureau of Investigation.

Courtois' family said he has a history of mental illness but has never been violent, according to The Portland Press Herald.

He has never threatened people in the past or shown violent tendencies; however, he has had a few psychotic episodes when not taking his medication, said his brother, Cory.

He said that when Timothy Courtois is on his medication, he is a conscientious family member and a good worker, but he suffers from bipolar disorder.

Courtois was stopped by state police on the Maine Turnpike at about 10 a.m. Sunday after other motorists reported a speeding Mustang with its four-way flashers on. His car was clocked at 112 mph. He was stopped, arrested and taken to the York County Jail.

Found inside his car was an AK-47 assault weapon, four handguns and several boxes of ammunition. A search of Courtois' home at 344 Elm St. in Biddeford turned up several more guns, including a machine gun, and thousands of rounds of ammunition. Also found inside his car were recent clippings of the Friday shooting at the Aurora, Colo., movie theater.