A waitress was injured in the shooting and underwent surgery Tuesday afternoon. Her condition remains very serious. There were other casualties. All the victims plus the alleged killer were local people.
Some people in the Czech Republic keep guns for hunting but the country has tight gun laws.
But where there is a gun and the will there is the potential for a massacre.
According to official figures, Czechs own 761,000 firearms in a population - or one to every 14 Czech citizens.
If and when a person flips having a gun to hand often leads to a massacre or suicide, or like in this case both.