A man who died in Bedford on Saturday (27 October) has been named as Patryk Olowniuk.
Emergency services were called to Leven Walk in Brickhill at 9.40pm where the 20-year-old victim was pronounced dead shortly after.
A post mortem examination carried out on Monday revealed that Olowniuk from Bedford died from a gunshot wound.
Following his death, an investigation was launched by the Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Unit, and is ongoing.
Four people – a 54-year-old woman, a 26-year-old man, a 22-year-old man and a 20-year-old man – who were arrested on suspicion of murder in connection with the death have since been released on bail.
Officers will continue to patrol the streets to provide further reassurance to local communities.
Police are urging anyone with information to come up and speak to them or call on 101 quoting Operation Mocha.
People can also call Crimestoppers, anonymously, on 0800 555111 or use the online reporting centre on the Bedfordshire Police website.