Uber driver arrested after firing gun, injuring a passenger

MESA, Ariz. (AP) — Authorities say an Uber driver has been arrested for allegedly firing a gun and injuring one of his passengers following an argument.  Maricopa County Sheriff’s officials say 60-year-old Peter Caso was booked into jail on suspicion of aggravated assault with a deadly weapon, disorderly conduct and endangerment. They incident occurred around 1 a.m. Friday near the Loop 202 freeway in Mesa. Sheriff’s investigators say Caso got into an argument with his two