Detectives believe the woman's remains were put inside a bin that was picked up from a Coolaroo property, in Melbourne 's north, by a garbage truck on Tuesday.
The thief, believed to be aged in his late 30s or early 40s, stole the Honda CBR motorbike from a Docklands apartment block garage in Melbourne at 5.30am on April 24.
William Taylor, 28, died when an allegedly stolen Jeep Cherokee collided with his Toyota Corolla in Burwood, in Melbourne 's inner-east, at about 7pm on Tuesday.
Victoria Police are investigating an incident on a train that was travelling towards Huntingdale Railway station, in southeast Melbourne, at about 6.45pm on Thursday.