A man in Germany has received a life sentence for putting poison in his colleagues' sandwiches, leaving one in a coma and two others with serious kidney damage.
The 57-year-old, named only as Klaus O, was arrested in May last year after he was caught on video at a metal fittings company where he worked, in the town of Schloß Holte-Stukenbrock.
When police searched his home they found a makeshift laboratory and a substance that the judge described as "more dangerous than all combat agents used in World War II". Chemicals found included cadmium, lead and mercury.
Klaus O refused to speak during the trial and his motives remain unclear. Prosecutors believe he wanted to see his colleagues’ physical decline.
German news agency DPA quoted judge Georg Zimmermann saying the court considered the crimes to be as serious as homicide.
Zimmermann ordered that Kalus O remained in prison after completing the life sentence because he remains a danger to the public.
The defendant’s lawyers plan to appeal.