by Andrew MARSZAL Agence France Presse LOS ANGELES, United States (AFP) — The teenager who gunned down classmates at a California high school before shooting himself died Friday, leaving detectives baffled over the motive of a Boy Scout with no obvious alarm bells in his background. Nathaniel Berhow died in a hospital one day after shooting himself in the head at the end of a 16th birthday rampage that left two fellow students dead. […]