Detectives investigating a murder in Colchester last week believe residents are scared to come forward with information about his death.
They have issued a fresh appeal for information following the attack on Murdoch Brown in Greenstead on Tuesday 7th May.
The 31-year-old dad died from blood loss after being stabbed in the legs on Buffett Way.
Detective Chief Inspector Stuart Truss, of the Kent and Essex Serious Crime Directorate, said: "I believe that the answers to who is responsible for Mr Brown's death lie within the Greenstead community.
"I understand there may be people who are scared to come forward, but I urge them to please contact us, or Crimestoppers anonymously, if they have any information at all, however insignificant they think it might be.
"His children have lost their father and we are doing everything we can to find answers for his family."
Officers continue to conduct door to door enquiries and review CCTV from the night.
Anyone who wants to provide information anonymously can do so via Crimestoppers, either by calling 0800 555 111 or using their online form.
In a statement released last week, Mr Brown's family paid tribute to him.
They said: "Murdoch was a much-loved partner, son, brother and uncle.
"He was a devoted father to his children and his family are heartbroken. They wish to grieve in peace.
"He will be very much missed by his family and friends."
Anyone wishing to speak to the police about his death should phone 101 and ask for the North Major Crime Team, or email firstname.lastname@example.org.