latest, josh, what you are hearing? >> another day, another mass murder in the united states of america. as you mentioned, this is the 17th mass shooting in the past week. there have been 232 this year. this, of course, raising the question for lawmakers how much mass murder is acceptable? nine more families in the united states are starting their grieving the loss of a loved one killed by fgunfire. >> reporter: this morning, law enforcement is investigating why a gunman opened fire at a commuter rail yard in san jose, california, killing nine people. >> we don't know anything about the motive right now. however, they were all employees of the transit district. they worked together. they were there together. >> reporter: the shots started ringing out around 6:30 a.m. >> once we received that received, deputies and surrounding officers immediately responded to the location. and addressed the threat. they did not wait. they immediately went to the scene and rendered first aid and