Kevin Thomas remembers his sister, Diane Scott, with a smile.
"She was very loud and very funny and always had a story to tell," he said.
But Scott's story remains a mystery. Her final chapter is yet to be written.
"The way she left us, nobody got a chance to say goodbye," Thomas said, all traces of his smile disappearing.
It was May of 2001 when the 41-year-old mother of three vanished. Thomas said he's thought about her every single day since.
"I knew for a fact it was some kind of foul play because that's not in her character," Thomas said.
"There is no doubt in my mind. There is no doubt in my mind that she is dead and that she was murdered," said Dauphin County prosecutor Fran Chardo.
Scott was last seen at Tri-Community Elementary School in Swatara Township after she dropped off her daughter at school. But she was later heard inside her home on Jefferson Street in Uptown Harrisburg. Neighbors said it sounded like she was arguing with someone over the phone.
Inside the house, investigators said they found things that no woman would have left behind. They found her wallet, her ID, and even her false teeth.
Police immediately focused on a potential suspect close to Diane Scott: her estranged husband, Raymond.
"Raymond Scott remains and has been the prime suspect in her murder," Chardo said.
Diane Scott had a Protection From Abuse order, or PFA, against her husband that had just expired.
Investigators also said Raymond Scott's girlfriend told them that a large blue storage container had gone missing from her apartment in Swatara Township.
"She was brought in for questioning by the Harrisburg police and she mentioned about this blue tote being missing," said Det. William Jackson, who is now leading the investigation for the Dauphin County District Attorney's office. "That was suspicion."
"This is a large container and she was a very small woman," Chardo said of Diane Scott, who stood under five feet tall.
Raymond Scott left the Harrisburg area after his wife's disappearance. He was recently contacted by abc27 over the phone and was asked to speak about the case.
"I'm not speaking about that," Raymond Scott said. "That brings up old feelings because we're still trying to find her."
abc27 then told him that investigators still consider him the prime suspect in his wife's disappearance.
"I'm not discussing anything," Raymond Scott said. "If they say I am, I have nothing to say."
Scott disconnected the phone call a short time later without answering another question.
It's important to note that Raymond Scott has never been charged with any crime connected to his wife's case.
"We don't know if she's buried somewhere," Jackson said. "We don't know if she could be tied in somebody's basement. People never thought that could happen until out in Cleveland."
For Thomas, it's those unanswered questions that are torturous.
"I want to know what happened," he said. "I want to know where she is. I want to know she's at peace now."
And if his beloved sister is gone, as he believes in his heart she is, he wants to lay her to rest properly. And he wants the person responsible to pay.
"That's the day I'm looking forward to and it's going to happen," Thomas said. "It's just a matter of time."
Anyone with information about Diane Scott's mysterious disappearance is asked to contact Det. William Jackson via the Dauphin County District Attorney's Office at 717-780-6767.