During the winter of 1941, the death of a man found in a downtown Portland, Maine alleyway left investigators divided by two very different theories: Was it an accident or was it murder?

During a nearly 18-month span beginning the winter of 2003, three women in Woonsocket, Rhode Island disappeared without a trace, leaving their families and investigators searching for answers.

When Shari Lynn Roth left her apartment in North Conway, New Hampshire for a short afternoon hike to one of her favorite spots among the White Mountain National Forest, what should’ve been a peaceful retreat turned into a fateful encounter with a still unknown predator.

Sarah Hunter was only 15 minutes late for work when her coworker called police to report her missing.

When a 15-year-old girl snuck out of her bedroom window one night in May of 1996, it was like she vanished right into thin air with no leads.

In a one month span during the winter of 1969, the city of Cambridge, Massachusetts was set on edge after two violent attacks on women while they slept in their beds challenged the very sense of safety residents thought they had in their own homes.

When investigators in Alachua County, Florida discovered the remains of two people among the charred ruins of a burned down shack and a letter in a nearby car that seemed to explain the entire scene, police in two states thought they were on the brink of closing a multiple murder case that started all the way north in New Hampshire.

When a fire engulfed the residence of esteemed local innkeepers, reducing it to ashes and laying bare the gruesome aftermath of a double homicide, the tight-knit village of Jackson, New Hampshire found itself grappling with an unimaginable tragedy.

When an elderly couple was found murdered inside their Danby, Vermont home in the fall of 1989, it had residents of the small town looking over their shoulders and double-checking their door locks at night.

When a 10-year-old girl didn’t come back from a quick trip to the store on a cold January night in 1988, her family and the Pawtucket, Rhode Island community searching for her feared the worst.

On the night of July 4, 1980, an evening of celebrations in the rural town of Anson, Maine ended in the murder investigation of a young local mother.

16-year-old Ashley Turniak died on the side of the highway in Massachusetts during a busy weekday morning commute.