CONCORD, Mass. (WHDH) -- Waltham's police chief was arrested for allegedly beating his wife and charged with assault and battery with a dangerous weapon and intimidating a witness.

Thomas LaCroix was arraigned in his bed at Emerson Hospital, where he was taken with chest pains following his arrest at his Maynard home Thursday night.

“He was sitting upright in a bed in a hospital gown with a bed sheet up to his chest. There were no visible injuries on his face. He did not speak,” said Matt Stout, the pool reporter who attended LaCroix’s arraignment.

LaCroix is accused of using a bicycle rack and counter top during a domestic dispute with his wife three days ago. His wife was injured.

“She went to a friend’s house who observed the injuries. They subsequently went back to the home that night and there was another altercation against both her and the friend,” said Assistant District Attorney Suzanne Kontz.

The District Attorney claims it found evidence suggesting the chief is suicidal, but his lawyer says he knows nothing about a noose and that the ladder in the garage was being used to fix a door.

“He was under some stress. He’s doing fine now. I have no concerns about any suicidal thoughts he might have or may have expressed at some earlier time. He’s doing well,” said Peter Bella, LaCroix’s defense attorney.

LaCroix is being held without bail until a dangerousness hearing scheduled for next week.

His neighbors are stunned by the incident and his alleged unraveling.

“Seems very nice, very quiet, no indication of -- no problems or anything,” said Peter Foy, a neighbor.

Officials did not say what the fight was about, but neighbors said LaCroix has been living in the Maynard house for a few years and he has been living there with a woman.

LaCroix is in custody of the sheriff.