Two people arrested by detectives investigating the murder of Jonathan McPhillips in Islington have been bailed.
A 19-year-old man [B] was arrested on Thursday, 16 March on suspicion of murder - he has been bailed pending further enquiries to a date in mid-June.
A 45-year-old woman [C] was arrested on the same day on suspicion of assisting an offender - she has been bailed pending further enquiries to a date in early May.
On Saturday, 4 March a 24-year-old man [A] was arrested on suspicion of murder. He was bailed pending further enquires to a date in mid-April.
An investigation was launched after police were called by the London Ambulance Service (LAS) on Saturday, 25 February at around 00:40hrs, to reports of a stabbing on Upper Street, N1.
Shortly after this, police were alerted to a second stabbing victim, also on Upper Street.
Father-of-two Jonathan, 28, was found injured and taken to an east London hospital where he later died on Wednesday, 1 March. His next of kin have been informed.
A post-mortem examination gave cause of death as single stab wound to the chest.
The second victim, a 17-year-old boy, was also taken to an east London hospital and has since been discharged.
The Homicide and Major Crime Command (HMCC) led by Detective Chief Inspector Dave Whellams are investigating.
Anyone who witnessed the incident or who has any information is asked to call the incident room on 020 8345 3775, or to give information anonymously contact Crimestoppers on 0800 555 111 or visit crimestoppers-uk.org.