The 12-year-old,a 20-year-old man and a 48-year-old woman were all declared dead at the scene.
Three psychiatrists found the boy lacked the mental capacity to plead guilty,Court of Appeal hears.
An 11-year-old female student is accused of stabbing a 56-year-old female teacher with a knife on Monday.
The student involved is assisting police and the teacher was taken to hospital.
The man,in his 20s,was involved in a single-vehicle accident,hitting a tree in Townsville.
The 23-year-old has been taken into custody after members of the public reported seeing him fleeing from a vehicle that was being driven recklessly.
The heritage-listed three-storey brick building has been left empty for a decade,but will be converted to a private hospital.
More than $60,000 in drug money has been seized from the homes of drug traffickers in north Queensland,police allege.
These are just some of the answers scores of school students gave when asked what they would do if they were an elected member of Queensland's parliament.
Police hope the reward will finally smoke out the killer of an 18-year-old door-to-door bookseller,44 years after she was murdered in far north Queensland.
The department faces a $4.5 million penalty after a piece of machinery fell off a truck and landed on the RAAF crewman's legs.