Footage posted to social media shows a passerby dressed in a white T-shirt and dark pants crouching behind a parked car before sneaking up behind a gunman, grabbing him and wrestling away his firearm.
Australians and the world have been left horrified and reeling after at least 16 people were killed, with another 40 injured ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results