A Turkish prosecutor held hostage for seven hours in an Istanbul courthouse died after being rescued by police on Tuesday, the foreign minister said on Twitter. Prosecutor Mehmet Selim Kiraz had been seriously injured in the rescue operation, which also resulted in the death of two gunmen holding him, according to police. Kiraz had been investigating the death of a 14-year-old boy at an anti-government protest in 2013 and it’s believed a Marxist revolutionary group plotted the kidnapping. “My son is dead, but let no one else die,” the boy’s father said, in an appeal to the hostage takers. The hostage takers demanded that a police officer confess to killing Berkin Elvan, who died when he was struck by a gas canister during protests.