Lieutenant Craig Cleary

Gerald F. Mason, after years of searching, the face of a killer.

Gerald F. Mason, after years of searching, the face of a killer.

He was only arrested that one time. So if he had not been arrested and done jail time in 1956 for that crime? We wouldn't be here today. Some quick police work easily located Mason, remarkably still living in his hometown of Columbia, South Carolina, and not a career criminal, but a retiree living comfortably with his family.

He was only arrested that one time. So if he had not been arrested and done jail time in 1956 for that crime? We wouldn't be here today. Some quick police work easily located Mason, remarkably still living in his hometown of Columbia, South Carolina, and not a career criminal, but a retiree living comfortably with his family.

He was only arrested that one time. So if he had not been arrested and done jail time in 1956 for that crime? We wouldn't be here today. Some quick police work easily located Mason, remarkably still living in his hometown of Columbia, South Carolina, and not a career criminal, but a retiree living comfortably with his family.

So why not just go and get Mason? The answer is Lohan McElderry would need a lot more than just a decades-old fingerprint match to prove to a jury that Mason was indeed a cop killer. How do you try to prove that Mason is the killer?

So why not just go and get Mason? The answer is Lohan McElderry would need a lot more than just a decades-old fingerprint match to prove to a jury that Mason was indeed a cop killer. How do you try to prove that Mason is the killer?

So why not just go and get Mason? The answer is Lohan McElderry would need a lot more than just a decades-old fingerprint match to prove to a jury that Mason was indeed a cop killer. How do you try to prove that Mason is the killer?

What they had was the single largest file in the very crowded Sheriff's Record Library. There were boxes and boxes. Boxes and boxes of evidence and leads collected over the years, which now had to be reexamined to see if any other clues could be connected to Gerald Mason.

What they had was the single largest file in the very crowded Sheriff's Record Library. There were boxes and boxes. Boxes and boxes of evidence and leads collected over the years, which now had to be reexamined to see if any other clues could be connected to Gerald Mason.

What they had was the single largest file in the very crowded Sheriff's Record Library. There were boxes and boxes. Boxes and boxes of evidence and leads collected over the years, which now had to be reexamined to see if any other clues could be connected to Gerald Mason.

Doug Tooley has lived in this house since 1956, less than a mile from the scene of the murders, in the same neighborhood police believe the killer used to make his escape.

Doug Tooley has lived in this house since 1956, less than a mile from the scene of the murders, in the same neighborhood police believe the killer used to make his escape.

Doug Tooley has lived in this house since 1956, less than a mile from the scene of the murders, in the same neighborhood police believe the killer used to make his escape.

Lowe and McElderry followed the trail of evidence to Shreveport, 1600 miles and 46 years from El Segundo, California.

Lowe and McElderry followed the trail of evidence to Shreveport, 1600 miles and 46 years from El Segundo, California.

Lowe and McElderry followed the trail of evidence to Shreveport, 1600 miles and 46 years from El Segundo, California.

Billy Jean Clark was just an 18-year-old kid in 1957 working his first real job behind the sporting goods counter at this local Sears. You sold a lot of guns, I assume.

Billy Jean Clark was just an 18-year-old kid in 1957 working his first real job behind the sporting goods counter at this local Sears. You sold a lot of guns, I assume.

Billy Jean Clark was just an 18-year-old kid in 1957 working his first real job behind the sporting goods counter at this local Sears. You sold a lot of guns, I assume.