Yasar Abbas was due to become a father for the
A murdered delivery driver was lured to an address with a bogus takeaway order and then attacked, police said.
Yasar Abbas, 28, was set upon by three masked men, in Walsall, on 13 April. He later died in hospital.
Mr Abbas was targeted while two friends who accompanied him were left "largely unharmed", a West Midlands Police spokesman said.
The motive remains unclear, with robbery ruled out as nothing was taken, the force said.
A post-mortem examination showed Mr Abbas was killed as a result of being struck across the head with a heavy bladed weapon.
His family have issued an appeal to catch the killers of Mr Abbas, who was attacked in Madison Avenue, Alumwell, at about 00:20 BST, and died in hospital.
They told how Mr Abbas, who was due to become a father for the second time, took the job weeks before his death to start a fund for his unborn child.
His baby boy was born on 2 May, the same day of his funeral.
Speaking from a family member's home in Walsall, close to where Mr Abbas lived with his wife and four-year-old son, Tariq Hussain said how his nephew was eagerly anticipating the arrival of his second son.
Mr Hussain said: "His wife hasn't yet been able to tell their young boy that daddy won't be coming home. He thinks he's away on holiday.
"The whole family is shattered by Yasar's killing."
'Thousands turned out'
Det Insp Gary Plant, who is leading the inquiry, said Mr Abbas was a "well-liked, popular member of the community" and was convinced answers to key questions about the killing lie in the community.
He said: "Literally thousands of people turned out for his funeral.
"We need to hear from anyone who knows of a dispute, row or grudge against Mr Abbas or anything that could explain why he was subjected to such a vicious attack."
Police believed the offenders arrived at the scene in a dark-coloured car that was parked in nearby Rippon Road.
The force was keen to hear from anyone who remembers seeing a car matching that description or a blue 62-plate BMW 5-series that was seen in the area earlier that night.