Last night a 27-year-old man was shot and killed while driving on the 280. This is the second freeway killing in less than a week. 37-year-old Luis Solari of Richmond was driving his Honda car at around 6 p.m. going southbound between the Alemany and Monterey boulevards exits when the shooting occurred. So far no arrests have been made, but according to the Gate: San Francisco police Sgt. Neville Gittens said the suspect vehicle......