Daniel Troy Johnson, 30, of St. Helens is now pleading guilty to charges of first-degree manslaughter, admitting his involvement in a March 9th crash in Portland, resulting in the death of a 90 year-old mother and her 55 year-old son. The Oregonian reports on the case, saying that Johnson’s trial had been going on for about a day-and-a-half before he abruptly changed his plea in the case. Johnson is now pleading guilty to charges of felony hit-and-run, DUI and other counts, in addition to the two counts of manslaughter. Johnson admits that he had been drinking before he went driving at “highway speeds” through a residential neighborhood, eventually ramming the car being driven by Paul Knepper, 55, and Hazel Knepper, 90. They died at the scene, while Johnson drove off. He stopped his SUV up the street from the crash, and then tried to run. One of the passengers in the SUV remained at the crash site, and testified against Johnson. Prosecutors and defense attorneys reportedly have agreed to ask for a sentence of 18 years in prison. This is Johnson’s third DUI conviction, and his driver’s license will now be revoked for life.