Serial killer Donald Harvey (64) beaten to death in cell

toledo - US serial killer Donald Harvey is deceased Tuesday after he was severely beaten in his cell in the prison of Toledo, in Ohio.

The 64-year-old killer, known as an assistant to a nurse 37 patients killed, wounded Wednesday was found in his cell. He was beaten up. Thursday, police confirmed his death.

What exactly happened and if anyone is suspected of his death is unknown.

Harvey known in 1987 killed dozens of people and shocked America by saying that he enjoyed to decide the fate of chronically ill patients.

He random people poisoned with arsenic and cyanide, and linked the oxygen. It earned him the nickname 'Angel of Death 'on. When someone arsenic smoke that he was Harvey used as a poison against the light.

Because Harvey known and closed a deal with prosecutors, he did not get the death penalty. He thought to save his victims out of their misery because they were chronically ill.

The serial killer was sentenced to 80 years and would still detained decades before there is even talk could be parole.