Gary John Costello (1952–2006) was an Australian jazz double bass player.
[1] He was a member of Paul Grabowsky Trio, which won the ARIA Award for Best Jazz Album in 1990 and 1996.
[2][3] He died aged, 54, after a heart attack.
[1][4] Barry Duggan, Allan Browne, Gary Costello Gary Norman/Gary Costello