Official response
Polish Prime Minister Donald Tusk said authorities found the bodies of two women and a man in the shooter's home in Ostrowiec Świętokrzyski, a city about 150 kilometers (93 miles) northeast of Krakow. Tusk said there was "much to suggest that they are members of the (suspect's) immediate family."
Interior Minister Marcin Kierwiński said the shooter was "fascinated by far-right ideologies" and held "very radical" and "ultranationalistic" views. The shooter wore military-style fatigues and a bulletproof vest and used a long gun. Numerous other weapons and ammunition were found in the gunman's car.
Tusk said Poland would observe two days of mourning for the victims. Krakow mayor Łukasz Gibała said the city will be in official mourning until Wednesday.