I need an Australian Case about criminal responsibility & a child committing homicide?

[gideon]

I am doing a law assignment and I need some case examples regarding the proinciple of doli incapax in Australia. It needs to be a child under 14 charged with either manslaughter or murder. the only one i have is the drowning of corey davison but i need atleast 2 Australian ones. Anything like the murder of Bulger age 2 in the UK would be perfect. Or even a case with no names, stating the consequences of a child who committed homicide?
Please help? this is my last assignment and I am really struggling to find anything relevent
Ill be picking best answer :-)