That’s definitely tweaking.
Even in self defence, no way out in 2 days.
This piece got 20 years for a murder done when he was 13. Many aggravating circumstances though, mainly that he will kill again.
https://www.smh.com.au/national/nsw/child-killer-asks-for-release-despite-breaching-supervision-orders-20240208-p5f3ew.html