Angered apparently by the behaviour of the caretaker of the old age home he was in, a former policeman stabbed her to death early on Friday.
The police said, Chidambaram, 88, stabbed Mary Meena, 65, to death at the old age home in Varadarayapalayam, near Thondamuthur. The woman died on the spot.
The police said that the residents of the home stopped him from running away and handed him over to the police.
The police said that Chidambaram had told them that in the last few months, Mary Meena had treated him badly. He was once chided by her when he returned to the home after 10 p.m. She had scolded him for urinating in the tub meant for storing water.
On Thursday, the woman again scolded him for urinating in his room. This led to Chidambaram stabbing the woman when she was fast asleep.
The police said that Mary Meena was in charge of the old age home and possessed the keys. The police said that they had arrested Chidambaram, who was a policeman during the pre-Independence days.
Police said that the residents of the home stopped him from running away and handed him over to the police