More than a year and a half after a fatal German police operation in the centre of Mannheim, the trial of the two officers involved began on Friday. The two officers, aged 26 and 27, are on trial at a Mannheim regional court for allegedly causing the death of a mentally ill man in May 2022 in the south-western city. The 47-year-old collapsed during a violent confrontation with police on a market square and died in hospital. The incident ignited debate about police tactics after videos shared online showed the man, who suffered from paranoid schizophrenia, being beaten. The older defendant, who…