HELSINKI, Finland -- Police probing Finland's worst peacetime bomb attack were trying today to work out whether their only suspect, a chemistry student who was among the seven dead, had found bomb-making instructions on the Internet. Investigators appealed to the public for information about the 19-year-old chemistry student, who lived at home with his parents, attended a technology institute in the Helsinki suburb of Vantaa and spent a lot of time hooked up to the Internet. The home-made bomb, weighing up to three kg (6.6 pounds) and packed with metal shards, went off close to a children's area in a...