A nearly weeklong search in Aroostook County for a man suspected of killing his girlfriend ended Friday morning.

Maine State Police said Jesse Marquis was found sitting at the base of a tree about three miles into the woods of St. Francis.

Searchers were led to Marquis by a tracking dog named Daisy Mae from the Strafford County, New Hampshire, Sheriff’s Office, which had been assisting in the search.

The St. Francis man had been the subject of a manhunt since last Saturday, when his girlfriend, Amy Theriault, 31, was found shot to death at a house on Main Street in St. Francis, a small town in northern Aroostook County.

Witnesses told police that Marquis left the house after a dispute with Theriault and fled into the woods behind it with a rifle. He was considered armed and dangerous.

Marquis, 38, was arrested at gunpoint, police said, but surrendered quietly shortly before 8 a.m. A hunting rifle was found nearby.

He was taken to the Fort Kent Police Department for processing, police said, and was expected to be taken to the Aroostook County Jail later Friday.

Marquis is expected to make his first court appearance Monday in connection with Theriault’s death.

Eric Russell can be contacted at 791-6344 or:

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Twitter: @PPHEricRussell