At the time, rabies wasn't suspected as the cause of the donor's death, and no rabies test was done before the donor's kidneys, heart and liver were delivered for transplantation in September 2011, the CDC said.
His cricket playing career ended after he was repeatedly no-balled for throwing in a Test against South Africa by umpire Colin Egar, who received death threats as a result.
Scientists don't usually test for cyanide in the battery of toxicology tests they may run in a suspicious death and don't generally look for it unless there is a reason to suspect it.