A 25-year-old student has been stabbed to death as he made his final pizza delivery before starting a career as an IT consultant.
Thavisha Lakindu Peiris, who was originally from Sri Lanka, was found slumped at the wheel of his car on Sunday evening, in the Southey area of Sheffield, as he was on his way to deliver a takeaway.
Detectives say they cannot explain the "brutal and shocking death" of a "career-minded, hard-working, bright, articulate and friendly young man".
According to South Yorkshire Police, Mr Peiris was making his last delivery for Domino's Pizza when he died.
He had been working for the chain's branch on Halifax Road in the city, while he studied IT at Sheffield Hallam University.
Mr Peiris had been taking an order to an address in Southey Crescent, which was due around 10pm.
When he failed to arrive, his work colleagues went to look for him.
He was found dead at 10.30pm in the driver's seat of his silver Toyota Yaris, outside the address he was delivering to.
A post-mortem examination showed that he died from stab wounds.
A 50-strong police team is now working on the murder inquiry.
Mr Peiris's family are hoping to travel to South Yorkshire, police said.
Detective Superintendant Lisa Ray, who is leading the investigation, said no motive had yet been established for the murder, and police were keeping an open mind.
But as the crime was not committed on a main through road, she believed it likely the fatal attack was carried out by somebody locally.
Extensive house-to-house inquiries are being carried out, and CCTV footage is being examined. His car had also been taken to a specialist forensic garage.
Det Supt Ray said: "This was his last delivery he was going to make, so it's an absolute tragedy. At the moment we don't have any positive leads as to who was responsible."
