Istanbul (CNN)As Turkey mourned dozens of people massacred at Istanbul's Ataturk Airport, investigators sought answers on who's behind the terror attack on one of Europe's busiest transit hubs. No one has claimed responsibility for the attack and investigators have not revealed what they know about the suicide bombers. Three terrorists stormed the airport Tuesday night, opening fire and detonating explosives in an attack that killed 42 people and wounded hundreds more. JUST WATCHED Anatomy of an explosion Replay More Videos ... MUST WATCH Anatomy of an explosion 01:11 When the attackers arrived at the Turkish airport armed with rifles and suicide bomb vests, two opened fire and detonated...
