NSW detectives are seeking the public's help to solve the fatal shootings of a bikie boss and another man in separate incidents in the state's central west earlier this year.
Shane De Britt, the NSW Central West chapter president of the Bandidos bikie gang, was found on his rural property south of Wellington with a fatal gunshot wound to the head on January 14.
Police said at the time there were no witnesses to the 60-year-old's killing and would investigate links to outlaw motorcycle gang activity in the area.
Bandidos chapters from Denmark, Germany, France, Singapore and Italy in January released tributes to Mr De Britt, who also went by the nickname "Wock".
Meanwhile on April 27, Wellington man Frank Smith was taken to Wellington Base Hospital by a member of the public who saw him collapse in the front yard of his Thornton Street home. He had a gunshot wound to his stomach.
The 48-year-old could not be revived.
"This good Samaritan has driven Mr Smith, who was in a critical condition, to Wellington Base Hospital where he later died," NSW Police Detective Superintendent Danny Doherty said in a statement on Tuesday.
"Frank was a local Wellington resident who was well known in the community and was a supportive and loving father and grandfather."