(Skamania, WA)  --  Police say three people died and three are injured, as a result of a head-on crash on S-R 14 in Skamania County.  Washington state troopers say a pickup truck crossed the center line Saturday night and slammed into an oncoming minivan.  Police say both drivers and a seven-year-old boy in the minivan died at the scene.  A woman and two other children are being hospitalized in Portland.  One of the kids is listed in critical condition.