A German nurse who allegedly killed his victims out of boredom has been charged with 97 murders, potentially making him one of the country's deadliest serial killers.
The nurse, Niels Hoegel, was already serving a life sentence for six convictions, including homicide and attempted homicide. He was charged with another 97 murders Monday, prosecutors said in a press release. He is accused of giving victims various non-prescribed drugs in an attempt to show off his resuscitation skills to colleagues and fight off boredom.