New details of the murder of a female journalist who was killed by her husband/ A relative: The murderer was very calm in the presence of the investigator

Mansoureh Ghadiri Javid, a veteran reporter for IRNA news agency, was murdered by her husband Ahmad in her home on the morning of Saturday, November 10. Jalal Babazadeh, Mansoureh's brother-in-law, said:
Mansoureh's family called her Flora at home. He was very patient, calm, and kind. This patience and sobriety also caused her to stay in her married life for the sake of her only son and not to think about separation.
We didn't know much about it, but small differences gradually affect the relationship. I think that these differences cool the relationship and gradually the person has reached a point where he suddenly explodes.
The officers told us to search the house, and we found Fleur's body wrapped in a blanket and bedside in the bedroom. The child was confused and unwell because of the sleeping pills that had been given to him. Even her father told her when we called that she had no right to open the door.
The murderer of the interrogator was talking and I didn't understand anything from what he was saying, but he was very calm and there was no remorse in his appearance.