He committed his first murder at 15 years old, ending the life of an innocent shopkeeper

as he and his buddies made their way around Lawrence, Massachusetts holding up convenience

stores for the thrill of it.

His lawyer would later plead for mercy on the accused teenage killer, but that mercy

would have unintended consequences, not so far in the future.

George Nasser is a two-time convicted killer, yes, but some people believe this man who

started his crime streak as a young teen might also be responsible for some 13 or more

killings around Boston in the 1960s, too.

His association with the man actually accused of those additional crimes only deepens

the suspicion.

I'm Kylie Lowe, and these are the stories of Dominic Carmel and Irvin Hilton, as well

as the crimes of George Nasser, on Dark Down East.

Mrs. Victoria Borissac didn't have time for the three young hooligans who came into

her grocery store, one wielding a pistol.

This is a stick-up, they barked.

They'd startled her, and she'd screamed in response, but one look at the trio left

her doubting they were serious about the threats they cast her way.

After the initial shock, Victoria regained her wits.

Being it was all just a prank, she grabbed a broom and chased the boys out to the street.

Just 20 minutes later, though, a second stick-up in the same part of town had a much different

result.

It was 8 p.m. on April 15, 1948, and 62-year-old Dominic Carmel was working alone at his shop

...