Boredom can cause people to do some stupid things, but one nurse decided it was reason enough to start killing patients. Spoiler alert: it wasn't.
Niels Hoegel, 41, is accused of being the worst serial killer in German post-war history, as his body count total rises. In 2005, another nurse witnessed Hoegel trying to inject a patient with unnecessary medication and she called the police. That patient survived, and Hoegel was arrested. He was sentenced to seven and a half years in prison for several cases of attempted murder.
A woman who had heard about Hoegel's case on television then stepped forward, saying she believed her mother had fallen victim to the nurse. Investigators then began looking deeper after Hoegel told fellow inmates, as well as a psychiatrist, that he had killed multiple people. In two earlier trials, Hoegel was found guilty of six murders and was sentenced to life in prison. Investigators kept looking, however, and toxicology reports ended up revealing it was worse than they could have imagined.
Hoegel has now been charged with 97 more murders, and will face trial once again. Investigators point out that it's impossible to know the actual number of victims, as patients who were cremated cannot be given toxicology tests.
So what drove Hoegel to kill all these people?