KOZHIKODE: On securing more evidence, the police on Saturday took two persons into custody in connection with the serial deaths of six members of a family at Koodathayi here. The police have confirmed that the death of all six was due to poisoning.

One among the persons in custody is Jolly, ex-wife of Roy, one of the deceased. The police suspect that one of the other two in custody supplied the cyanide that was reportedly used to murder the six family members. The evidence collected from bodies exhumed from the cemeteries here will be key in the case. Even though the presence of cyanide in Roy’s body was revealed during post mortem, it was kept a secret under the assumption that it was a suicide.

Officials said it will take one month to get DNA test results which will confirm the cause of death of the other five family members.