hague u.n. tribunal stun courtroom suicide bosnian croat war criminal say thursday work dutch investigators piece together smuggle fatal dose poison high-security build slobodan praljak 72 die wednesday hospital hague within hours drink vial liquid read appeal judgment international criminal tribunal former yugoslavia l8n1nz2ym preliminary test confirm cause death drink liquid kill spokesman vincent veenman public prosecutors office hague say yet say substance test need say 5-member icty appeal bench uphold praljak conviction charge crimes humanity persecution murder expulsions bosnian muslims territory capture nationalist bosnian croats brutal imprisonment wartime detainees also uphold 20-year prison sentence criminal investigation immediately launch dutch authorities seal icty courtroom take evidence praljak tell court take poison denounce verdict slump back chair dutch prosecutors say inquiry focus assist suicide violation medicine act also try determine poison smuggle court court thursday decline provide comment cite ongoing independent investigation strict procedures u.n. detention unit adopt follow 2006 death suspect slobodan milosevic former serbian yugoslav president milosevic die heart attack verdict genocide war crimes charge ban medication cell may worsen exist heart condition emotional reactions bosnia praljak death highlight last division balkans court aim bring reconciliation convict war criminals often revere heroes 1,000 nationalist supporters gather hold mass praljak former film theater producer bosnian town mostar know destruction iconic old bridge muslim victims wartime violence welcome 20-year sentence express hope would deter future crimes croatian newspapers thursday focus lack security measure tribunal government rejection court find croatia member european union also responsible war crimes verdict consequences croatia read headline novi list daily appeal chamber find former president franjo tudjman croatia responsible say horrific end hague tribunal read front-page headline jutarnji list daily like paper run prominent photo praljak swallow poison dramatic events unfold last minutes court final rule close next month 24 years l8n1nl7zt previously two defendants await icty trial serbs commit suicide hang u.n. cells accord court document icty indict 161 suspect bosnia croatia serbia montenegro kosovo connection atrocities ethnic war 1990s 83 convict 60 ethnic serbs u.n. tribunal seek answer stun courtroom suicide