The intersection of rich foreigner frantic for a kidney, cornea or liver and poor local desperate to make money has spawned an illicit organ-trafficking industry, from India to Brazil.

There's booming demand… so there's a large underground market in organ trafficking in China, acting as an intermediary between organ seekers and organ donors.

"We are investigating the possibility that some of these murders are the work of an international organ trafficking ring who are making these murders look like human sacrifice," said Binoga.