CCTV pictures released in Adrian Cooksey probe
A potential witness to a fatal attack in Wiltshire is being asked to contact police.
Adrian Cooksey, 50, from Trowbridge, died after he was assaulted near a taxi rank in Melksham in March 2009.
As part of a new investigation into his death, police have issued CCTV pictures showing three men outside the Tavern pub in Market Place, Melksham.
A spokesman said two have been spoken to but officers want to speak to the third man pictured leaving the pub.
He asked anyone who recognised the man, who left the building at around 0037 BST on Sunday 8 March 2009, to get in touch.
Last year, Thomas Minshull of Melksham, was cleared of manslaughter and the force relaunched the investigation following a review.
Wiltshire Police have been revisiting CCTV taken around the time of Mr Cooksey's death. A spokeswoman said a number of possible witnesses had already been spoken to.