Queensland Police Commissioner Katarina Carroll will walk away with about $216,000 in lieu of serving out the remaining four months of her contract after she was forced to sensationally resign early as the state’s top cop to “clear the air” after mounting pressure over Queensland’s youth crime crisis.  A mother and her little boy were stabbed to death inside a martial arts studio in Sydney’s west shortly before her estranged husband was killed in what police suspect was a ­bitter love triangle.  Anti-doping investigators have accused Melbourne footballer Joel Smith of cocaine trafficking in a dramatic escalation of his failed drugs test probe.  A man has been jailed for over five years after a night of drinking led him to commit multiple home invasions across Adelaide.  See omnystudio.com/listener for privacy information.