When a young rapper leaves a promotion party for a friend's album, an argument escalates to violence. But when hundreds of people are around as Jamie Lee is gunned down on Tremont Street, the loss becomes even more painful for his family. Five years after that night, his family still begs for answers and his only son wonders why no one will answer questions.

In our first minisode, we have a major update on the investigation into the murder of Theresa Corley. Just one week before the 39th anniversary of her death, her family tells Boston 25 News about what investigators found after the exhumation.

A wealthy businessman was shot to death in his sleep at his home in Connecticut just before the holidays in 2013. Police ask for an indictment against the last person to see him alive: his grandson. But a lack of evidence leads the investigation to a dead end. Three years later, a tragedy at sea causes a rift in the family that turns into a court battle.

A uniquely curated museum built a century ago sat untouched as its namesake, Isabella Stewart Gardner, intended – until two men talked their way into the museum after hours and ripped 13 priceless works of art from their frames. Now, the frames sit empty as investigators work to track down the last leads they have before the artwork disappears forever.

A 19-year-old woman leaves a bar after an argument with her boyfriend in 1978. She tries to hitchhike home, but turns up dead off the side of an interstate in Bellingham, Massachusetts. For nearly 40 years, her sisters have sought justice for Theresa by retracing what they know about that hellish night over and over.

A 16-year-old girl goes missing from her lifeguarding job at a rural pond in Massachusetts. Three years later, her remains are found in a secluded hunting spot just a few miles away. In the years since, her family has struggled to cope with their loss and the questions over who is responsible, but they’ve put their grief to work in passing laws to help find other missing children.

New England's Unsolved is a production of Boston 25 News. In this series, we take a look into cold cases, crime files and questions waiting for answers.