The trial of a 61-year-old German man accused of issuing dangerous threats to Austrian doctor Lisa-Maria Kellermayr has begun in Wels.

Kellermayr, who faced relentless online harassment and death threats from anti-vaccine activists, took her own life in July 2022. The prosecution argues that the accused's messages contributed to her psychological distress and eventual suicide.

The case highlights the darker side of online hate during the COVID-19 pandemic, with Kellermayr investing heavily in security measures after feeling abandoned by authorities.

The trial is expected to last several days, with witnesses and experts testifying about the impact of the threats.

The outcome could set a precedent for addressing cyber harassment and its consequences.