People from India owned this restaurant. I just hope no one is confusing religions. The owner's first name is Shullye, so I have no idea what kind of a name that is. People have confused religions before and for example, attacked Sikhs because of their turbans and beards.
Poland also has had its football/soccer hooligan problems. Some of this sounds a bit like hooliganism in the lead up.
Certainly, the people of Poland, seeing what has happened in Germany, must be very sensitive to the matters going on. I'm not being critical of them.