Police say that a 17-year-old student in the southern city of Nashville opened fire in a high school cafeteria.
Hours after Trump announced the $500bn plan for Stargate, Musk questioned the value of the investment.
Holders Real Madrid keep alive automatic qualification for the Champions League last 16, but PSG dent Man City hopes.
Firefighting aircraft and ground crews are battling fast-moving wildfire in the Castaic Lake area north of Los Angeles.