Senior rebel Bikki Nick Martin was shot dead in front of a bypass at the Perth Motorplex.
A 50-year-old man was allegedly shot dead in front of a crowd, including family and children, at the Queens Beach drag racing site around 8.30pm on Saturday.
Martin and another man were treated by paramedics at the scene, but were unable to recover.
The other victim was taken to hospital.
One spectator told The Sunday Times The shooting took place a few meters from the track, while another said her children were forced to testify later because police would not let anyone go.
“As we waited to leave, we saw an ambulance officer doing CPR on a corpse lying on the ground. My kids could see everything and they are still very excited about it, ”he said.
A few weeks after his death, Martin was attacked in a Scarborough bar by a Hales Angels performer, as reported. West Australian.
The gang crime squad is investigating the incident.
Anyone with information, or who has witnessed the incident, is urged to contact the Crime Stopper at 1800 333 000.