Chaos erupted at Prague University on Thursday when a student went on a killing spree, killing 14 people and injuring 25 people in the Czech Republic’s worst mass shooting. Earlier reports said that 15 people were killed and 24 were hurt, but the figures were later changed with the possibility that the death count could rise.Chaos erupted at Prague University on Thursday when a student went on a killing spree, killing 14 people and injuring 25 people in the Czech Republic’s worst mass shooting. Earlier reports said that 15 people were killed and 24 were hurt, but the figures were later changed with the possibility that the death count could rise.