NORTON — The FBI is announcing a $20,000 reward for information on the current whereabouts of longtime fugitive Andrew Dabbs, who is accused of murdering his girlfriend in October 1981.

Dabbs, who also goes by his middle name Peter, should be considered armed and dangerous, according to the FBI.

He is wanted in connection to the murder of Robin Shea in Norton 40 years ago.

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The couple was driving through Norton on Oct. 10, 1981 when Dabbs allegedly shot Shea in the chest with a .45 caliber revolver and pushed her body out of the car onto the side of Route 123.

She was later found by a passing motorist.

Robin Shea. Courtesy FBI Boston

On Nov. 3 that year, the Bristol County Superior Court in New Bedford indicted Dabbs for murder and issued a warrant for his arrest.

After he was also charged with unlawful flight to avoid prosecution, federal authorities issued an arrest warrant for Dabbs in September 1982.

Dabbs is a Black man with brown eyes and would now be 78 years old, according to the FBI.

At the time of the murder, he weighed around 180 pounds and was about 5 feet 10 inches tall.

He had a mole on the right side of his nose, a scar on his arm, and skin grafts on his leg from a burn.

Dabbs was an auto mechanic, may have possessed weapons, and was known to use drugs.

The FBI notes that his last known address was in Derry, New Hampshire, but he also has ties to Massachusetts, Colorado, Florida, Indiana, New York, and Pennsylvania.

“Someone out there knows where Andrew Dabbs is, and we’re asking you to contact us," said Special Agent in Charge of FBI Boston Division Joseph Bonavolonta.

"We are in the final stages of this investigation and we’re doing everything we can bring him to justice and provide some much-needed closure to Robin’s family who has already endured enough heartache."

“The reality is that this is really unfinished, it’s unfinished in the sense that I’m talking about it and he’s out there somewhere," said Joyce Carter, Robin Shea's sister.

"Maybe he’s dead, and if he is, I would love to know that, I would love to know more of that detail, and if he isn’t dead, if he’s alive, he needs to pay for what he did.”

FBI Boston Division, Norton Police, and the Massachusetts State Police assigned to the Bristol County District Attorney’s Office are investigating.

Anyone with information can call the FBI at 1-800-CALL-FBI (1-800-225-5324) or submit a tip electronically at tips.fbi.gov.

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