German police on Wednesday released photographs of Tunisian national Anis Amri, 24, who is suspected in the Berlin truck attack at a Christmas market that killed 12 people and injured dozens of others on Monday. Amri has multiple aliases and is now the target of a massive manhunt. His identification was discovered in the truck used in the attack. He was the subject of a terror investigation earlier this year in Germany, but he was not deported. Intelligence officials reportedly suspected that Amri had connections to ISIS even before Monday's attack.