More charges flagged for teen driver after coupleâs Australia Day deaths Save Normal text size Advertisement A teenager charged with two counts of murder after allegedly running a red light in a stolen 4WD and killing a Brisbane bayside couple could face further charges over the death of their unborn child. About 150 locals gathered at the scene, at the corner of Vienna and Finucane roads in Alexandra Hills, on Wednesday night to pay tribute to Katherine Leadbetter, 31, and Matthew Field, 37, whose deaths on Australia Day left friends and family âabsolutely heartbrokenâ. The 17-year-old male accused of being behind the wheel of the Toyota Landcruiser, allegedly stolen from a Cleveland home, had clipped another vehicle, causing the 4WD to roll before it struck the couple, who were walking their dogs at the time.