A sex attacker who tried to grope a female train passenger ended up losing his arm when a locomotive hit him during a scuffle with a crowd that came to the victim's aid. A 22-year-old man from Tunisia tried to kiss and grope a woman, 25, on a tram in the German city of Stuttgart in the early hours of Sunday, according to the federal police. Other passengers rushed to the victim's aid and left the train with her assailant at the next stop at Oesterfeld station in the city's Vaihingen district. A scuffle between the Tunisian, a second man...