MANCHESTER, N.H. (WHDH) - Police in Manchester, New Hampshire returned to the scene of an unsolved murder on Monday.

Denise Robert, 62, was shot and killed while walking in her neighborhood in August 2015. Robert was an advertising saleswoman with the New Hampshire Union Leader.

No one has been arrested or charged in the case. Police searched through a backyard in Manchester Monday looking for a bullet. Officials did not confirm if it was located.

The New Hampshire Attorney General’s Office confirmed with 7News that they jump-started the case in February by assigning two veteran investigators from the attorney general’s office to the case. The two investigators have been paired with an investigator from the Manchester Police Department to try to reexamine the entire case from the beginning. It’s unclear whether the investigation has made any progress.

Robert’s family is asking for anyone with information to contact the Manchester Police Department. A $45,000 reward is being offered for any information that will lead to an arrest.

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