DeCoste was returned to the jail,Thomas said.
He was charged with first-degree assault, attempted first-degree assault and attempted taking of a police officer’s firearm. They are all felonies.
DeCoste, who has an extensive criminal record, was also charged with resisting arrest, a misdemeanor. He is scheduled to return to court Jan. 13 for a probable cause hearing.
Thomas said he could not comment on DeCoste’s previous record, but knew of his conviction four years ago in the incident at the Southern New Hampshire University campus on Keewaydin Drive in Salem.
DeCoste was arrested by Salem police on criminal threatening and disorderly conduct charges after making a threatening call to the college’s director.
DeCoste, studying for his master’s degree in business administration, had been asked not to return to the school, police said.
The incident led to an hour-long lockdown of the campus, although only four people were at the school during the 4 p.m. incident.
DeCoste, who told the judge during his arraignment that he was unemployed and an amateur comedian, had been on conditional release from the state psychiatric hospital, the prosecutor said.