Police want to speak to the driver of a vehicle seen in Clifton Terrace, Douglas in the early hours of Wednesday, March 26.
It's part of the investigation into the death of William ‘Billy’ Rogers, who passed away in Noble's Hospital after an alleged incident in the area at that time.
The vehicle was seen in Clifton Terrace with its headlights on and facing towards St Ninian's, at about 2.15am.
Anybody with information in relation to the matter is asked to contact Police Headquarters, on 631212, or ring the anonymous Crimestoppers line on 0800 555 111.
A 26 year-old woman has been charged with murdering Mr Rogers.
An inquest into his death has been opened and adjourned.