A husband and wife from Burbank were killed Saturday night after their truck went off the Little Naches Road near Highway 410 and overturned into the Naches River. State Patrol Troopers say 44-year-old William Retterer Jr. and his wife 43-year-old Sherri Retterer were driving along the Little Naches Road about 30 miles northwest of Naches when their pickup truck left the road and went into the Naches River. The truck overturned and troopers say both died. Sherri Retterer was found dead in the truck while her husband was found more than a mile downstream also dead. Troopers are investigating the cause of the crash. They are not sure who was driving.