Three Hearts song released to honour Kate Leadbetter, Matt Field, and son Miles killed in Alexandra Hills crash

The stepfather of a soon-to-be mum killed alongside her partner in a hit and run incident earlier this year has released a song in their memory.

On Australia Day, while walking their dogs, Kate Leadbetter, 31, Matt Field, 37, and their unborn son Miles were struck by an allegedly stolen car in Alexandra Hills.

Police allege a 17-year-old boy ran a red light in a Landcruiser and collided with a truck at an intersection before the 4WD rolled and ploughed into the couple who were crossing the…