A 23-year-old man has been charged with the murder of his mother in their home in Avon, Massachusetts, after police say he admitted to killing her. Thadeus Joseph was ordered held without bail after he was arraigned on a murder charge Wednesday in Stoughton District Court in the death of 53-year-old Astrid Joseph.

Thadeus Joseph, 22, is charged with killing his 55-year-old mother, Astrid Joseph, in Avon on Tuesday. He pleaded not guilty.

Astrid Joseph was identified by officials as the woman killed in Avon. She was found dead in a home on Nichols Avenue in Avon at 4:22 p.m. on March 4. A household member called 911 to report an unresponsive woman who needed medical help in the home, the office said.

Avon police and fire officials responded at 4:22 p.m. to the Nichols Avenue home after a 911 call “from a household member about an unresponsive female in need of medical assistance,” according to a statement from the Norfolk County District Attorney’s Office.

A 22-year-old Avon man will appear in court on Wednesday morning for murder charges in connection with the killing of a 53-year-old woman on Tuesday evening. Thadeus A. Joseph, 22, of Avon is expected to be arraigned in Stoughton District Court on March 5. He is charged with murder, according to the Norfolk County District Attorney’s Office.

The death of a woman in an Avon home is being investigated as a homicide. WBZ-TV's Juli McDonald reports.

A suspect has been arrested after a woman was found dead inside an Avon home on Tuesday. The Norfolk County District Attorney said the incident is being investigated as a homicide. Late Tuesday afternoon,

A woman found dead in her home in Avon led to her son being charged with murder. A prosecutor revealed in court how he made odd statements and acted erratically when arrested by police.