The two Bridgwater murder suspects arrested for the Dampiet House murder have been released under investigation.
The victim was discovered at about 12.30pm on Saturday. Although treated by paramedics, he died on the scene.
While the car park has been partially reopened, there are still areas of the public car park which are cordoned off.
Anyone with any information should call 101 and ask to speak to Brunel MCIT investigations.
Alternatively you can contact Crimestoppers anonymously on 0800 555111 or report it on-line by clicking HERE.