Following enquiries into the murder of Rolandas Poskus, police are appealing for two people to contact them.
A man and a woman walked down Arthur Street in Hull, in the direction of Walliker Street, in the early hours of Friday 15 June.
Officers are keen to speak to these people as they may have some information that could assist their investigation.
The first was a woman with long dark hair who was carrying a shopping bag. She walked down the street at around 1.30am.
Shortly after this, a man walked a black and white dog down the street. He was wearing black trousers and a light coloured top.
If this was you please call 101 quoting log 523 of 15 June 2018.