The incident reportedly happened at Oda, Akure residence of the deceased, last Wednesday.
According to the state Police Public Relations Officer, Mrs Funmilayo Odunlami, the deceased’s family claimed the suspect was suffering from mental illness but the command had not got the medical report to affirm the claim.
The PPRO said, “The suspect is in our custody and we have started an investigation into the matter but the family told us that the suspect had a mental health issue.
“So, we are waiting for the medical report to ascertain that. The deceased is a foster mother of the suspect, she had been taking care of her since her childhood.”
It was gathered that the decomposing body of the deceased, who was said to be working at the Ondo State Ministry of Finance, was found at her residence last Sunday, three days after she was killed.
A neighbour of the deceased, who spoke on condition of anonymity, said she was stabbed in her belly area, and the doors were shut against her to prevent her from getting any help.
“There was blood everywhere from her bedroom to the living room as she struggled to get out and find help, but because the doors were shut against her, she could not make it.
“The knife her attacker used to kill her was found beside her. This is really very sad,” he said.
Another source said the remains of the deceased had been deposited at the morgue of a hospital in Akure.