A man has turned himself in after ACT Police released this video of a one-punch attack in Canberra on New Year's Eve.
The CCTV footage appears to show the victim in a tense conversation, when another man steps up and punches him on the side of the head, knocking him to the ground.
Alcohol-fuelled violence is a huge issue in Australia at the moment. Earlier this week, 18-year-old water polo player Cole Miller was killed by a one-punch attack in Brisbane.
ACT Police are urging anyone who may have witnessed the incident to contact Crime Stoppers on 1800 333 000, or via the ACT Crime Stoppers website.
Alexandra Lee is a politics reporter for BuzzFeed News and is based in Sydney, Australia.
Contact Alex Lee at firstname.lastname@example.org.
Got a confidential tip? Submit it here.