The bullet that could that could catch a killer is inside the arm of former Bandido bikie Ricky Chapman.
Surgeons are removing the bullet that could lead police to the weapon and potentially the person who killed Chapman s father-in-law, senior rebel Nick Martin, a Perth underworld heavyweight shot dead in a crowd of hundreds on Saturday night.
The bullet went straight through the 51-year-old s chest and into his son-in-law, who was sitting behind him in the stands.
Ricky Chapman in hospital with a bullet lodged in his arm.(Nine)
Chapman is in hospital to have it removed as more than 100 police officers, including homicide detectives, investigate the murder of the former Rebels boss.