Gatton woman Joanne Marie McCauley has been named as the prime suspect in a hit-and-run that claimed the life of Hong Kong national Shui Ki Chan after she allegedly boasted about it to family and friends.Mr Chan, 25, was riding his pushbike home from work along the Warrego Highway near UQ Gatton on August 22, 2012, when he was struck and left for dead in a ditch alongside the road.Picture:Supplied