Italian Police Detain Suspect in Fatal School Bombing ROME - Investigators in the southern Puglia region said on Thursday that they had arrested a suspect in a school bombing that killed one student and injured six at a Brindisi school three weeks ago. After hours of interrogation that started on Wednesday, the police arrested Giovanni Vantaggiato, a 68-year old fuel vendor from Copertino, about 30 miles north of Brindisi. "He admitted to building the explosive device, planting it and detonating it," said Cataldo Motta, the prosecutor coordinating an investigation that involved hundreds of police and military officers. "He did not want to say why he did it," Mr. Motta said. He said that Mr. Vantaggiato admitted that he had detonated the device during daytime hours because at night, "no one was around," Mr. Motta said, a detail that added the charge of terrorism. Mr. Vantaggio's alleged objective of creating widespread alarm "was achieved," he said. The bomb hidden near the front gate of a Brindisi technical school went off shortly before 8 a.m. on May 19 as students were entering the school. Because the school was dedicated to Francesca Morvillo, who was killed with her husband, prosecutor Giovanni Falcone, by a Mafia bomb 20 years ago, investigators initially investigated links to organized crime. Growing social tensions in Italy and a slew of recent violent acts on the part of radical groups were also considered. Mr. Motta said the suspect had "economic problems," but he could not understand how that might have prompted Mr. Vantaggio to allegedly carry out a terrorist act. "He did not explain, he did not give justifications," he said. The investigations led to Mr. Vantaggio after his car and another - identified by Italian media as belonging to his wife - were recorded by video surveillance cameras in the vicinity of the school several days before the attack and during the early hours of May 19. One car was also present in the moment when the bomb went off, police officials said. Mr. Motta said that the investigation would continue to uncover the motive and to determine whether other people were involved in the crime. "Now we have a starting point from which to proceed," he said. The investigation is shaky if we stop here. We must continue to work.