Michigan judge rules school shooter eligible for life sentence without parole

Teenager pleaded guilty to killing four students and injuring seven others at Michigan high school in 2021.
Judge ruled that shooter's age and difficult home life were mitigating factors but did not outweigh seriousness of crime.
Prosecutors highlighted shooter's premeditation and obsession with violence in arguing for maximum sentence.
Formal sentencing is scheduled for December 8 after opportunity for victims' families to share impact statements.
Shooter's parents also face charges over providing access to the gun used in the school shooting.