Nurse Niels Hoegel , 41 , is now regarded as one of Germany's deadliest post-war serial killers after he confessed to killing his patients at two hospitals in northern Germany between 2000 and 2005 all in an attempt to show off his resuscitation skills to colleagues and fight off boredom . Video @nowthis ________________________ We 💕 all medics . DM or tag @htm_lifestyle and @healththenmore with yo . . .