killings that began with a drive-by shooting at a recruiting center near a civilian store front, texas now will be arming national guard personnel across the state. florida is locating store front facilities to national guard armories. four u.s. marines were also shot in tennessee in this week's attack. lance corporal squire wells, gunnery sergeant thomas sullivan, staff sergeant david wyatt and sergeant carson holmquist. there are more questions than answers at the moment. investigators are looking for a motive that could have been sparked during a trip mohammad youssuf abdulazeez took to the middle east. a friend of abdulazeez tells cnn that he was certain "something happened over there and wasn't the same when he came back to the u.s.." abdulazeez's boxing friend spencer manning tells cnn's investigation unit that he spoke briefly with abdulazeez at a fast-food restaurant just two