Toronto:
An Indo-Canadian man serving a 25-year prison sentence for murdering his wife and business partner for insurance claims, has died at a hospital in Toronto, authorities said.
Sukhwinder Singh Dhillon, 54, poisoned his wife, Parvesh Kaur Dhillon, on February 3, 1995, and business partner, Ranjit Singh Khela, on June 23, 1996.
Mr Dhillon was serving a 25-year sentence for first-degree murder at Warkworth Institute since 2001. The cause of Mr Dhillon's death yesterday was not released.
Death of both of his victims was originally believed to be of natural causes until toxicology tests revealed strychnine in their bodies.
Mr Dhillon collected $300,000 in insurance after his wife died, and was making a claim for $200,000 from Khela's life insurance policy when he was arrested, the Sun News Network reported.
Police also suspected Mr Dhillon may have been involved in three more poisoning deaths in India. His third wife and twin infants born to his second wife all died of poisoning in India, the report said.