2012-10-17 - Rider/Person Down, Jamaica Road

There was a old school triumph motorbike parked up and a cyclist (shaved head picking up a helmet from the east bound carriageway) I thought it was a ped that had been caught by the motorbike...

This also sounds like a plausible explanation from what I saw. Motorcylist was definitely down. Cyclist could have been casualty, involved and/or first responder.