TRI-CITYHEARLD.COM, WA - Kennewick’s retired city engineer and his wife, a longtime Tri-Cities educator, were found dead in their home this week, likely at the hands of one of their sons. Police and crime lab technicians began investigating Thursday the deaths of Vickie and Daniel Kaufman inside their east Kennewick home. They were the parents of the 43-year-old suspected gunman in a deadly rampage Wednesday that left one neighbor dead and another wounded and three homes burned. Fires also were set in two union halls in Kennewick.  Ryan Kaufman, a longtime Tri-Cities electrical worker, is believed to have died Wednesday morning inside a burning pickup in West Richland. His truck caught fire during a police chase that ended in an exchange of gunfire with four officers. While investigators have linked the deaths of the Kennewick couple to the West Richland shooting, the suspect has not been officially identified as Ryan Kaufman. To read the whole article and see video, visit