A fatal crash involving a semi-truck and a box van has claimed the life of one person Tuesday afternoon near the bottom of Alpowa Grade west of Clarkston, Washington on U.S. Highway 12. Details are sketchy at this time, however the Washington State Patrol has confirmed that at least one person has died as a result of the accident that reportedly happened at about 1:30 p.m. PDT. The identity of the victim has not been released and the WSP’s investigation is continuing.