Gardaí investigating the murder of Lisa Thompson in Dublin last week have said that a male has contacted them and is currently assisting with the investigation.
Yesterday, gardaí issued a fresh appeal for information in a bid to identify a man who dropped a document into Finglas Garda Station.
The document, in the name of the mother-of-two, was handed into a staff member at the station early last Thursday morning.
This afternoon, gardaí said that "following the public appeal a male has contacted the investigation team and this witness is currently assisting with An Garda Síochána's investigation".
Ms Thompson was found stabbed to death at her home at Sandyhill Gardens in Ballymun on the afternoon of 10 May last.
The 52-year-old was last seen two days before and gardaí believe her body was in her home for some time before it was discovered.
Gardaí in Ballymun have thanked the public for their assistance so far and appealed to anyone who has information on the murder of Ms Thompson, and who has not yet contacted the investigation team, to contact them at Ballymun Garda Station on 01-666 4400 or the Garda Confidential Line on 1800 666 111.