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DUNWOODY, Ga -- Many police departments are turning to social media to send out crime alerts and even try to solve cases. A two year old murder mystery in Dunwoody is now being featured on YouTube as police try to bring new attention to the case.

On July 1, 2010 Roger and Dorothy Abbot, who were in their 80's, were found dead after the Dunwoody Fire Department put out a fire in their home. Dunwoody Police said the fire was set to cover up the couple's murder.

Even though it has been two years since their deaths and a suspect has not been caught, police refuse to call it a cold case. "We all work it together just about every day," said Sgt. Gary Cortellino.

The police department just posted a five and a half minute video about the murder on YouTube, complete with interviews of investigators and the Abbott's daughter Sally Cheek.

YOUTUBE VIDEO: Two-year old mystery

Sgt. Cortellino is hoping the video will jog someone's memory about the case. "It's like having a one thousand piece jigsaw puzzle and you're right there and that one piece is missing from the center," he said. "That's what we need."

Police still believe the key to solving the case is identifying a sketch of a man who was seen on the day of the murder near the Abbott's home on Peeler Road. Sgt. Cortellino said the man in the sketch may be the killer.

He said whoever killed the couple knew them because there were no signs of a break in at the home. They also don't believe someone had a grudge against the Abbott's. "These people belonged to a church for over 40 years," Cortellino said. "We couldn't find a person to say anything bad about them."

Cortellino said nothing was taken from the home but the motive may have been money. "We just started following the money trail, so that's what we're into right now," he said. "We're trying to see who would benefit from this."

There is a $10,000 reward for information that leads to an arrest in the case. Call Crime Stoppers Atlanta if you think you know something about the case.

You can follow Kevin on Twitter @kgrowson

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