Thomas P., 36, is on trial in Austria for involuntary manslaughter by gross negligence following the death of his girlfriend, Kerstin G., on January 19, 2025, during an ascent of the Großglockner, Austria's highest peak. Prosecutors allege Thomas left Kerstin, suffering from hypothermia and exhaustion, alone approximately 50 meters from the summit while he went for help. The defense argues it was a tragic accident, but the prosecution contends Thomas, acting as a de facto guide, failed in his responsibilities by not adequately preparing the couple for the challenging conditions, including inadequate gear and Kerstin's alleged lack of experience for such an ascent. Temperatures plummeted to -9°C (felt as -20°C with strong winds), and Kerstin was later found dead by rescuers.