Karrakatta cemetry

There's an unmarked grave at Karrakatta cemetry, off to one corner, underneath a paperbark tree. I know it's a grave because every time I visit, which is more or less weekly, there are fresh flowers there, in a small, dark blue pottery vase with "Sweet one" written in white script on its fattest part. Actually, there isn't, but if there was, whose grave is it, who brings the flowers and what's the story? TASK Write for 10 minutes, beginning with the words "Every week, he makes the journey..."