Tags: Criminal, Murderer.
Stephan Letter (born 17 September 1978 in Herdecke North Rhine-Westphalia) is a German former nurse and serial killer known to be responsible for the killings of at least 29 patients while he worked at a hospital in Sonthofen Bavaria between January 2003 and July 2004. The acts have been described as Germany’s largest number of killings since World War II.