The victim of a fatal stabbing in Flintshire has been named as Matthew James Cassidy.
A total of four people have been arrested after the 19-year-old from Merseyside died on Bethel Place, Connah’s Quay, on Monday.
A man in his 40s and two women, aged 19 and 60, were arrested on Tuesday on suspicion of assisting an offender.
A 48-year-old man arrested on suspicion of murder following the incident remains in police custody.
He is receiving medical treatment and has not yet been interviewed.
The man is his 40s and the 60-year-old woman, both from Flintshire, have been interviewed and released without charge, North Wales Police said.
The 19-year-old woman, from Merseyside, remains in custody.
Mr Cassidy’s family said they were “completely and utterly devastated”.
Det Ch Insp Arwyn Jones said: “Despite the recent arrests, the investigation is developing and we are still keen to speak to anyone who may be able to assist in the enquiry.”