PHOENIX (AP) — An Arizona teenager suspected of killing one person and injuring a dozen others during a 90-minute string of drive-by shootings in metropolitan Phoenix told police he believed people were after him because of his involvement in another shooting. That’s according to court documents released Friday. Nineteen-year-old Ashin Tricarico is accused of opening fire on vehicles and pedestrians from a white SUV in at least eight separate shootings in three cities that stoked fear throughout the region. The man who died was in a pickup truck that careened into a canal alongside a freeway. Police said he was shot in the neck.