Bloodsoaked son, 20, ‘beats own mother to death with hammer’ before sprinted into woods screaming one chilling word

A DERRANGED son bludgeoned his mum to death with a hammer – before running into the woods and screaming for his “mama”. Sebastian van Stockum, 20, was arrested last week after he admitted beating to death Laura Williams, 55, at their $2million home in New Canaan, Connecticut, police said. Officers said they responded to a…