The man charged with stabbing four people on an Amtrak train in Niles will undergo a mental competency evaluation to determine if he is fit to stand trial.

Shannon Sible, the attorney representing 43-year-old Michael Darnell Williams, of Saginaw, said Williams would be evaluated at a state forensic center.

Judge Dennis Wiley ordered the competency evaluation during a hearing Friday morning in Berrien County Trial Court.

Sible said he met with Williams Wednesday. At that time, Sible said Williams was polite, but showed signs that he might have a mental illness.

Both the prosecution and defense agreed that a competency evaluation should be ordered, Sible said.

Williams has been charged with four counts of assault to commit murder — a felony carrying a maximum penalty of life in prison.

His bond was set at $1 million cash.

Williams allegedly stabbed four people on an Amtrak train that was stopped at the Niles Amtrak station on the evening of Dec. 5.

Passengers reported that Williams was acting erratically in the moments leading up to the stabbing. The Niles Police Department was dispatched to the scene and used a taser to apprehend the suspect.

Williams later told Niles Police detectives that he remembered talking to a man on the train that turned into a demon, according to the complaint warrant. He then told detectives that he had to fight the demon, but didn’t remember what happened next.

Sible said a competency evaluation typically takes about 30 days, but could take longer or shorter depending on the case.