The following is a list of massacres and pogroms that occurred in the territory of the present-day Czech Republic between the years 1436 and 1900: The following is a list of massacres and pogroms that occurred in the territory of the present-day Czech Republic during the 20th century, but before World War II: The following is a list of massacres and pogroms that occurred in the territory of the present-day Czech Republic in the time of Nazi Occupation of Czechoslovakia, until the end of World War II on May 8, 1945.
The only exception is the biggest single-day mass murder of Czech citizens in history, which was committed at the Theresienstadt family camp at Auschwitz II-Birkenau in modern-day Poland, on March 8–9, 1944.
The following is a list of massacres that occurred in the territory of the present-day Czech Republic between May 9, 1945, and February 25, 1948 (the day of the communist takeover): The following is a list of massacres that occurred in the territory of the present-day Czech Republic between 1948 and 1989: The perpetrator had previously threatened to kill the victims.
He had committed multiple misdemeanors over the preceding years, which would have allowed police to seize his firearms, however, those were not investigated to the fullest extent of the law.
A care center operator reacted by confiscating all lighters from clients, but authorities deemed that illegal so they had to be returned.