Jack O'Connor explains all the times he relied on a shooting rest to help ensure he made the steadiest possible shot on big-game.

Three teenagers were killed and 15 other people were injured in a mass shooting at Young Park in Las Cruces, New Mexico, Friday night during an “unsanctioned car show,” according to local police.

Police say a man suffered serious injuries and requires ongoing treatment after being shot in the ankle. The targeted attack took place in October last year in Fawkner, in Melbourne's north.