Gwent Police say Ian Hamilton may be hit-and-run victim
Police investigating the death of a man found by a roadside believe he may have been the victim of a hit-and-run incident.
The body of Ian Hamilton, 27, from Bristol, was found near Pontllanfraith in Caerphilly early on 17 July.
Officers have spoken to the drivers of two cars seen on CCTV between 0200 and 0400 BST on that day, but want to trace the driver of a BMW 3 series coupe.
Anyone with information is asked to contact Gwent Police on 101.
Police want to speak to anyone who was in the Penmaen Road area at the relevant time to come forward.
Mr Hamilton, who was also known as Parker Hamilton, was visiting family in south Wales and is known to have been at a social event the previous evening.
Ch Supt Alun Thomas said: "We have been very pleased that members of the public have come forward and have helped with the investigation.
"We still need the driver and/or passenger of a 3 series BMW coupe, which was captured on CCTV at the relevant time period, to come forward as we believe they may have vital information to help us.
"We are keeping an open mind into how Mr Hamilton died but we cannot discount the possibility that he was a victim of a hit and run incident.
"We, and Mr Hamilton's family, are anxious to find out what happened to him," Mr Thomas added.