By Josh Hanrahan and Charlotte Karp For Daily Mail Australia
Published: 02:50 GMT, 16 February 2020 | Updated: 02:52 GMT, 16 February 2020
A teenage relative of a slain ISIS terrorist has been shot dead in Sydney's west, while his killer is still on the loose.
Omar Elomar, 18, was gunned down by the roadside on Cabramatta Avenue at Miller, in the city's south-western suburbs, about 11pm on Saturday.
He was shot in the chest before dying in a pool of blood next to his silver Lexus.
Omar's relative Mohamed Elomar was infamously pictured holding a severed head in each hand while fighting for ISIS in Syria, before later dying in a drone strike in 2015.
Omar Elomar (pictured) was gunned down in a western Sydney park on Saturday night
Omar's relative Mohamed Elomar (pictured) was infamously pictured holding a severed head in each hand while fighting for ISIS in Syria, before later dying in a drone strike in 2015
The slain teenager's older relative Shayma posted a tribute on Facebook on Sunday in which she claimed he had a smile that 'could light up any room'.
'Last night somebody thought it was OK to take away one of the two and only brothers that I have,' Ms Elomar wrote.
'Omar I have no f**king words! I have no more ambition for life. Omar wanted to be a lawyer... (he) was going places in life.
'Anyone who knew this beautiful soul knew