Prosecutor: Bulgaria Bomber Tried to Rent Car A man believed to have carried out a suicide attack on a bus full of Israeli vacationers had a short haircut, not the long hair seen in a security video, and tried to rent a car in the days before the bombing but was turned down because his ID appeared suspicious, a Bulgarian prosecutor said Friday. Authorities looking for clues as to the identity of the man suspected of killing himself and six others are using his fingerprints, his DNA and his fake Michigan driver's license. Security camera footage from before the attack showed the suspected bomber wandering in and out of the terminal, wearing a baseball cap over long hair, and a T-shirt, and plaid shorts, with a bulky backpack believed to contain the bomb. Israel was quick to blame Iran and its Lebanese ally Hezbollah for the attack and a U.S. official told The Associated Press on Thursday night that Hezbollah was believed to be behind the attack. The official spoke on condition of anonymity because it was a sensitive intelligence issue. Prosecutor Kalina Chapkanova said in a TV interview that before the attack a man believed to be the bomber tried to rent a car in the town of Pomorie, near the site of the bombing. She said the owner of the rental agency, whom she would not identify, become suspicious of his license and refused to conclude the deal. This image provided by the Bulgarian Interior Ministry Thursday July 19, 2012, shows a damaged bus following Wednesday's deadly suicide attack on a bus full of Israeli vacationers at the Burgas airport parking lot, Burgas, Bulgaria. Chapkanova quoted the agency owner as saying that the suspect spoke English with a "specific" accent. "The owner said that the man had a short haircut, while the photo on the license showed a man with long hair," Chapkanova said. The owner said that there was nothing suspicious in the behavior of the suspect. He has been very calm and even the failure of the deal did not upset him. The victims of the attack included the Bulgarian bus driver and five Israelis, including a pregnant woman. Interior Minister Tsvetan Tsvetanov said that the suspect has spent at least four days in the nearby resort cities of Ravda and Pomorie before the attack. In a statement late Thursday, the international police agency Interpol announced it was sending a team to help Bulgarian authorities. It said it would be essential to find out whether any of the false documents the bomber carried had been entered into the database of the France-based organization. There are more than 33 million entries in that data base - 2.5 million of them stolen or lost U.S. passports. Israeli Prime Minister Benjamin Netanyahu said the bombing "was carried out by Hezbollah, the long arm of Iran."