RICHLAND -- The Washington State Patrol is continuing to investigate why a Pasco man was driving the wrong way Sunday night on Interstate 82 near Dallas Road.
Three people died when Marco Delamora's eastbound pickup hit a car traveling west in the westbound lanes.
Lt. Roger Wilbur of the state patrol said it appears just one call had been received to report a wrong-way driver before the wreck. That could indicate Delamora had been traveling the wrong way in dense fog for only a short distance.
Officers are continuing to interview witnesses while they wait for a toxicology report, Wilbur said.
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Delamora was killed, along with the two adults in the Mazda his pickup hit. It was driven by Heather Davidson, 27, of Richland, a medical assistant. With her was her fiance, Stephen Metzger, 30, of Kennewick, a former Marine involved in the mission to rescue prisoner of war Jessica Lynch from an Iraqi hospital in 2003.
The couple's 3-year-old child also was in the car and was taken to Spokane's Sacred Heart Medical Center for surgery and was reported to be doing well.
Three other cars also hit Davidson's Mazda after the initial impact, but no one in those cars was injured.
Delamora, 26, of Pasco, worked at Hollister in the Columbia Center mall in Kennewick. He was born in Colima, Mexico.
Interstate 82 through the Mid-Columbia from Umatilla County to the Lower Valley has been the scene of several fatalities caused by wrong-way drivers during the past two decades.
Among the most notorious was a 1997 Easter Sunday wreck that killed Dennis Click, 10, of Kennewick, and critically injured his mother and teenage sister.
Henry Hartley, 78, of Benton City, had driven the wrong way for 15 miles before he hit the family's car two miles west of the Highway 395 intersection.
Hartley, who had a blood-alcohol level twice the legal limit, also died.
More recently, Edward Castilleja, then 49, of Prosser, was sentenced to four years in prison after entering a modified guilty plea to being intoxicated as he drove the wrong way on Interstate 82 in November 2009.
Angelica Barajas, 20, of Grandview, was killed when her car was hit by Catilleja's truck in Grandview.
In 1998, an elderly Granger woman died after she drove her car onto I-82 in the wrong direction at the Prosser exit and hit a car.
Three years earlier, Michael Holm, 33, of Richland, died after driving his sedan the wrong way on I-82 between the Tri-Cities and Umatilla in the early morning hours and hitting a tractor-trailer rig.
Another wreck in 1992 killed Marion Coffman, 79, of Richland, when he drove the wrong way on I-82 near Benton City on a fall evening. His car struck one driven by Sally Longan, then 50, of Benton City, who was critically injured.