after. and just in time for the holidays, diet wine? does it taste the same? good evening. and it's great to have you with us here on a tuesday night. and we begin with that deadly rampage in california. a lone gunman, a powerful arsenal, seeming to pick his targets at random, including that elementary school, shooting into that class full of kindergartners. in all, seven crime scenes, four people killed. at least ten people injured, including two children. and abc's senior national correspondent matt gutman leading us off from red bluff, california, tonight. >> reporter: the gunman had already killed four people by the time he started firing into the rancho tehama elementary school, right during morning dropoff. >> all of a sudden, one of the teachers came running out around the building, told us to all run inside, there's a shooting coming. >> reporter: witness coy ferreira says he took cover in his child's kindergarten classroom as gunfire poured into the school for 25 minutes, shattering windows, wounding one child and terrifying the rest.