Sheffield Hallam University has paid tribute to murdered pizza worker Thavisha Peiris who was fatally stabbed as he made his final delivery before starting a career as an IT consultant.
A spokesman said: "The university is saddened to hear of the tragic death on Sunday of Thavisha Peiris, who successfully graduated in 2011 with a degree in information technology.
"We encourage anyone with information to contact South Yorkshire Police."
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