Högel struggled early on with the demands of the work, describing the first surgery he assisted on as a 'traumatising experience'.He went on to develop depression and anxiety and began to drink more as a result.In just one weekend the worker noted there were 14 re-animations to five patients.All of the patients ultimately died, but rather than calling the police, Högel's bosses simply transferred to another department, anesthesia.German privacy laws mean authorities will not fully identify criminals, sometimes even after they have been convicted.Suspects in criminal cases are often only identified in German media by their first name followed by the first letter of their surname.He will now face charges of killing a further 100 people at two clinics next year.
Högel decided at 16 that he wanted to become a firefighter but discovered he suffered from vertigo, and entertained thoughts of being a doctor but found the study too difficult.
After killing at least another 35 patients, he moved in 2002 to a hospital in Delmenhorst near the north-western city of Bremen, where he resumed his grisly practice within a week of starting his new job.
It is believed Högel was suffering from a rare condition known as Munchausen by Proxy syndrome, in which sufferers harm in order to act as 'reviving angel'.
He dropped out of school shortly before his Abitur exams, the German equivalent of A Levels, before deciding to become a nurse like his father.
At the age of 17 he began nurse training at the St.