India, May 29 -- A 35-year-old civil engineer on Wednesday killed his parents in West Bengal's East Burdwan district by slitting their throats and then went on a stabbing-spree in North 24 Parganas district, injuring four persons, the police said.

Locals caught the accused and assaulted him before he was arrested by the police. Later, a mob ransacked the Bongaon police station in North 24 Parganas demanding that the accused be handed over to them.

"The accused killed his parents at Memari in East Burdwan district and later came to Bongaon in North 24 Parganas where he stabbed four people. He has been arrested," Dinesh Kumar, superintendent of police of Bangaon, said.

According to the police, the accused passed out of Jadavpur Universit...