Police have been supporting his family, and have been making a number of enquiries to locate the vehicle and its driver.
Acting Detective Inspector Warrick Adkin said the vehicle was captured on CTTV footage turning into Browns Road and is urging anyone who knows who it belongs to to contact Police.
"This is an absolute tragedy for Mr Mousses' family.
"His family were due to celebrate his 80th birthday this week, and instead are mourning his death.
"We are determined to find who is responsible and urge anyone with information about this vehicle and its driver to contact us.
"To the driver, we implore you to do the right thing and turn yourself in, for the sake of his family."
Anyone with information is asked to contact Crime Squad on 09 261 1321 or Crimestoppers on 0800 555 111.
Police are also interested in speaking with anyone who has seen a vehicle of this description that has sustained some damage to the front panelling.