Apparently it went down about 6 minutes after taking off from Hillsboro (HIO).  It appears to have been a high speed impact based on a lot of witnesses reporting hearing what sounded like an explosion, and the local news video (from a helicopter) shows nothing but debris at the crash site. The largest piece I saw on the video looked to be about 3 or 4 feet long. Most were much smaller.  Very sad.

Tom Gourley