A 50-year-old father was arrested on Monday for stabbing his son to death in Poonga Nagar in Thoppampatti near Coimbatore. According to a report published in The Hindu, the accused, identified as Mohammed Raffiq, a resident of Anjaneyar Temple Street at Poonga Nagar near Thoppampatti, killed his son after the latter tortured his mother for money to buy alcohol. Then, …