A Muslim couple and their son are accused of the quadruple honor killings of half of their family

Jurors in Ontario, Canada, were told how Afghan-born Mohammad Shafia, 58, his wife Tooba Yahya, 42, and their son Hamed, 21, were responsible for planning and carrying out the murders of four family members. In closing statements to the court in Ontario prosecutor Laurie Lacelle urged the jury to find all three guilty of killing Shafia and Yahya's three teenage daughters and his other wife from a polygamous relationship. The accused killed the girls - Zainab, 19, Sahar, 17, and Geeti, 13 - because they dishonored the family by defying its disciplinarian rules on dress, dating, socialising and going online. The fourth victim was Shafia's first wife, who was infertile, and was living with the family in Montreal. The polygamous relationship, if revealed, could have resulted in their deportation. The family had left Afghanistan in 1992 and lived in Pakistan, Australia and Dubai before settling in Canada in 2007.