Erin Moriarty

In 2007, her father, John Bish, who worked so closely with police, had a stroke.

Heather would now face the daunting task to take over where her father had left off.

And it would not be easy.

The police have always stayed very careful about what they let us know.

In 2008, a man who resembled the sketch, named Rodney Stanger, was arrested for murdering his girlfriend in Florida.

The victim's sister reached out to Heather and claimed that Stanger may have been involved in Molly's murder as well.

He has this violent history.

He lived very close to where Molly trained to be a lifeguard.

Was he a smoker?

He was also a smoker.

He was known to fish at Cummins Pond and hunt in the area where Molly was found.

Police were notified about this tip, but Heather says she was told that Stanger had been on one of the investigators' lists of persons of interest from the very beginning.

Sean Murphy is a lieutenant with the Massachusetts State Police.

Stanger was convicted of murdering his girlfriend and was sentenced to 25 years in prison.

In 2012, state police went down to Florida again to search Stanger's trailer.

Detective Murphy says the items were tested for DNA to see if they could be connected to Molly.

But there was not enough evidence to make him an official suspect.

And then in 2011, a private investigator came to Heather with a new tip about a man named Gerald Battistoni.

He had actually raped a woman in the woods where Molly was found.

His ex-wife had a white car that she reported he was driving in Warren the day Molly disappeared.