SACRAMENTO, Calif. (AP) — An American college student who along with two friends helped stop a terror attack on a high-speed train traveling from Amsterdam to Paris returned home to California.A relaxed Anthony Sadler, 23, walked off a commercial plane at Sacramento International Airport accompanied by his parents Tuesday.The Sacramento State University student, dressed in black shorts and a gray sweatshirt, was carrying a black backpack as the family walked into the tarmac with the rest of the passengers.