In 2018 a 57-year-old man identified as Klaus O was caught on a security camera opening up a coworker’s lunchbox and putting a substance in the sandwich inside.
Today he covered his face as he entered a German courtroom to receive his sentence for adding dangerous heavy metals to the food items at the factory where he worked over several years.
According to CNN affiliate RTL, two victims have serious kidney damage and a third is now in a vegetative state after falling into a coma.
Klaus O never spoke during his trial so the motive for his actions are still unclear.
However a mental health expert for the prison service told the court that Klaus O wanted to see how the poison would affect his colleagues, like a scientist performing tests on a rabbit.
The court found Klaus O guilty of attempted murder and imposed the maximum sentence – life in prison.