POLICE have revealed they are reviewing an alibi given to them 20 years ago about the savage murder of Victoria Cafasso.
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Launceston detectives believe the alibi - provided by a man in 1995 - could have been false, after a member of the public contacted police earlier this year.
Ms Cafasso's beaten body was found on Beaumaris Beach with 21 stab wounds on October 11, 1995.
In the months following the murder, six witnesses gave various conflicting accounts of Ms Cafasso's whereabouts in the lead-up to her death.
Despite a long-running investigation and the questioning of multiple suspects, the 20-year-old's killer has never been found.
Launceston Criminal Investigation Branch Detective Inspector John King said this year police have received six pieces of information.
The most alarming tip-off received raises questions about information provided to police during the initial investigation.
Detective Inspector John King said while the lead was not considered a major breakthrough, it would be investigated further.
``Anything can happen in these long-term investigations,'' he said.
``Whether the information we receive is from 20 years ago, or it comes in tomorrow, it'll be accessed on its merits and taken seriously.''
Police currently have no suspects in the case, but do have a list of people of interest, Detective Inspector King confirmed.
There have been no major breakthroughs in the case in the last decade.
He said while not all of the leads received this year are new, it is the most information police have received about the cold case since 2011.
In 2014, police received just two tip-offs, along with three in 2013 and five in 2012.
Several teams of police investigators have tried to crack the mystery, but have been unsuccessful.
Dectective Inspector King said police will not close the case until the person responsible for the ``random attack'' is brought to justice.
About 1.30pm on October 11, 1995, Ms Cafasso's corpse was discovered on the Beaumaris Beach by Margaret McIntyre.
Police evidence suggests more than 50 people visited the beach between 8.30am and the time of Ms Cafasso's death between 11.30am and 12.35pm.
Anyone with information about the murder should contact Crime Stoppers on 1800 333 000.