4 Shot in Arizona After Giffords Testifies

 UPDATE Friday:  A second victim of the shooting has died, a lawyer and mediation expert--who is also former reporter at the Albuquerque and Santa Fe daily papers.  The shooter, who had a dispute with a company and targeted his victims,  killed himself later, as per usual. 

Earlier:   This morning, at the Senate hearing on gun violence (still going on, see CSPAN), former Rep. Gabby Giffords provided another moving testimony, along with her husband.    Now comes word: four shot at a workplace in Phoenix, shooter on the loose.   Four taken out on stretchers.   This was just cited at the gun violence hearing.   UPDATE   This local TV report has several injured and shooter still on loose.