A shocking attack occurred on the Appenzeller Bahn when a 31-year-old man brutally assaulted a 71-year-old retiree.

The attacker, known to police for prior violent incidents, repeatedly struck the victim until he was left injured on the floor.

While most passengers remained passive, 20-year-old Paul Marschke intervened, confronting the aggressor and preventing further harm.

Despite the attacker's size advantage, Paul stood his ground until the train stopped and police were alerted.

The victim, though injured, was treated and later released from the hospital.

Questions now arise about the attacker’s history and why he was still free despite multiple prior offenses.