For the first time in history, one operation had the potential to kill two patients.

"You mean doctors can kill patients and get away with it?"

He killed eight patients and attempted to kill one more by June 2003.

At the time police were convinced that her actions could have killed many more patients.

According to archives released in 2003, Adams was thought by police to have killed 163 patients.

He is currently serving a life sentence for killing 12 patients.

And, if so, are doctors who use them essentially killing patients to get their organs?

"If someone is killing patients then I think the ends justify the means, at least in this instance."

Why would someone like Jimmy want to kill patients?

Within the next three years, Cullen had killed five patients and attempted to murder two.