http://www.washingtonexaminer.com/slaying-still-seems-senseless-40-years-later/article/115530
Nearly 40 years after Paul Digon's death, police are still seeking information on the execution-style killing of the 20-year-old.
Digon, a yeoman in the Coast Guard, was newly married and clean-cut.
"To my knowledge, he didn't have an enemy in the world," said Paul Masterson, a cold-case homicide detective from Prince William County.
At 10:45 p.m. on Dec. 3, 1973, he called his wife to tell her he was heading back to their home in Oxon Hill. He had just left a relative's home in Hollscopple, Pa.
The next morning, two hunters found his body partially submerged in a lake off Route 29 in Prince William County. He had been shot once in the back of the head, probably from the edge of the pond, and his car and cowboy boots were gone.
Police found the car in Northwest D.C. on Jan. 14.
The day after the slaying, one witness at Vint Hill Station, an Army base, saw the car and waved it through since it had a military sticker on the front granting the driver access. Several people were in it.
Another witness saw a black man wiping the car down a week before the police found it, but there was no indication that he was involved in the slaying.
The police have ballistics from the weapon, but have not found a match.
Since the pond is away from main roads, Masterson said the killer was probably familiar with the Gainesville area.
It could have been a hitchhiker; Digon often picked them up. The military sticker on the car may also have motivated the killing.
Digon didn't have a criminal record or history of involvement in illicit activities, and his peers in the Coast Guard admired him.
"They all said that he was a good person, that he was always on time and at his duty station," Masterson said.
Anyone with information on the case can anonymously call Crime Solvers toll-free 866-411-TIPS, and potentially receive a reward of up to $1,000. Masterson said the department hopes for any help citizens can provide.