Public assistance sought to solve mystery of 84-year-old Dunolly grandmother Margaret 'Peggy' Howlett's death

A RENEWED call has gone out for information regarding an unsolved murder case, which occurred near Singleton more than 25 years ago.

Margaret "Peggy" Howlett, an 84-year-old grandmother, was found dead within her home at Dunolly Road, Dunolly, on the evening of April 2, 1994.

She died as a result of blunt force trauma to the head.

Due to advancements in forensic analysis, further examination of items seized at the house has provided detectives with an as-yet unidentified DNA profile.

"Mrs Howlett's attacker attempted to destroy evidence of the crime by setting a fire within the house," a NSW Police Force spokesperson said.

"This may also indicate an interest in lighting fires or the use of fire in other offending behaviour."

A reward of up to $100,000 remains in place for information leading to the arrest and conviction of the person or people responsible for Mrs Howlett's murder.

Anyone who can assist with the identification, arrest and conviction of an offender should phone Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page at https://www1.police.nsw.gov.au/