The victim of Sunday's fatal stabbing in Ipswich been formally identified as 32-year-old Daniel Saunders.
Daniel, who was originally from Surrey, was attacked in an alleyway behind houses on Turin Street at around 1.50pm.
He was treated by ambulance crews but died at the scene.
Later that day, three people were arrested on suspicion of murder - two men aged 44 and 39 and a 31-year-old woman.
All three have since been released on police bail until the 11th January.
Detective Chief Inspector Caroline Millar, the senior officer on the case, said: "We continue to appeal for anyone with any information about this horrific crime to contact us immediately.
"We have undertaken numerous enquiries in the past 48 hours and we are grateful to the local residents in the area of the incident for their patience as our officers go about their work.
"Although we believe this to have been a targeted attack, we understand it has caused a great deal of concern to the local community, so as a result additional police patrols will continue in the area to provide reassurance to residents.”
Officers are still conducting house-to-house enquiries in the area around Turin Street, and are also searching through CCTV footage for any clues.
A police statement said: "Detectives are continuing to appeal for anyone who was in the vicinity of Turin Street, Kenyon Street and Wherstead Road on Sunday afternoon, and witnessed any suspicious persons or activity, to make contact.
"This includes anyone driving through the area who has a dash cam fitted in their vehicle."
Anyone with information should contact the Major Investigation Team either by using the online portal or by calling 101 and quoting reference 72682/18.
Alternatively, contact Crimestopper anonymously on 0800 555 111.
Image: Suffolk Constabulary