Relatives of a father-of-two from Birmingham who was fatally stabbed during an argument with a group of teenagers have paid tribute to him as a considerate and caring man.
The family of Sarfraz Khan, who died in hospital four days after being stabbed in the head with a screwdriver, appealed for witnesses to help catch his killer.
Mr Khan, a shopkeeper's son from Hodge Hill, was attacked during an argument near a children's play area in Sparkbrook last week.
In a statement issued by West Midlands Police, the 24-year-old's family said: "Sarfraz was a considerate, loving and caring man. He had two daughters who are still waiting for their daddy to come back.
"The family is devastated and are suffering because of his death, which has caused a lot of grief and sorrow. Anyone who knows Sarfraz knows he was a bubbly, good-hearted, loving person who was always smiling."
Urging anyone with information about the murder to come forward, the family added: "If you know anyone who has taken our brother's beautiful smile away, please come forward and help us to get justice."
Detectives believe that Mr Khan, whose daughters are aged two and four, became involved in an argument after a group of up to eight teenagers, including at least two girls, objected to him urinating at the Larches Green play area.
The youth who stabbed Mr Khan was on Wednesday urged to hand himself in to police. The male, who is thought to be about 17, ran off after the stabbing.
Appealing for those involved in the argument to come forward, Detective Chief Inspector Richard Baker said: "There appears to have been an exchange between Sarfraz and some of the girls in the group, which turned into an argument and two male youths from the group joined in."
Speaking to reporters at West Midlands Police headquarters, Mr Baker said early inquiries suggested the wanted youth is of Asian appearance or mixed race.
Releasing an e-fit of the teenager, the detective confirmed that the eight-inch screwdriver used in the attack has been recovered.