THE stabbing of the 20-year-old CIT student last night is the sixth violent death in Cork since July.
Gardai are actively investigating the murder of 64-year-old Frankie Dunne on December 28.
The 64-year-old's dismembered body was found in the grounds of Castlegreina House on Boreenmanna Road. The popular Churchfield man had been living nearby in supported accommodation by Cork Simon.
No arrests have been made in that investigation.
Gardai say they have a number of "persons of interest", including one Eastern European man who travelled home the day after the body of Mr Dunne was discovered. He was travelling on tickets that were booked before the murder.
In October, Kilcrohane native Timmy Hourihane was killed.
Mr Hourihane,a former chef from Bantry, died in the early hours of October 13 following a brutal assault in the Mardyke Walk area of the city. He and other homeless people had gathered to live in tents.
He was found close to his burning tent, with severe injuries. He was rushed to Cork University Hospital but died shortly afterwards.
Two people have been arrested as part of that investigation. A file will be sent to the DPP shortly, for directions on whether charges will be brought.
Also in October, Knocknaheeny native James Duncan died in hospital six weeks after being injured in an assault on Patrick Street on September 12. A man was questioned and a file is being prepared for the DPP.
In September, 55-year-old Paul Jones was found dead in his home on Bandon Road – at the other end of the street from where last night's stabbing occurred.
The Cahergal native had been living in the area for a number of years.
His son found him dead after going to his home when he could not get in contact with him.
Two people have been charged in connection with that incident. His sister Helen Jones of 27 Cahergal Avenue, Mayfield, was charged with burglary, and with possession of a knife contrary to Section 13 of the Criminal Justice (Theft and Fraud Offences) Act. Keith O’Hara, also of 27 Cahergal Avenue, Mayfield, was charged with trespass to commit an assault causing harm.
On July 5, two-year-old Santina Cawley died at Cork University Hospital, hours after being rushed there with serious injuries from an apartment at the Elderwood complex on Boreenmanna Road.
Karen Harrington, 35, and with an address of 26 Elderwood Park, Boreenmanna Road, has been charged with Santina's murder.