A shocking X-ray shows how a man died with up to 30 nails fired into his skull by a high-powered nail gun.
Sydney, Australia, homicide squad detectives have released the graphic image as they make a fresh appeal for information about Chen Liu's murder.
The decomposed body of the 27-year-old, also known as Anthony Liu, was found dumped in the Georges River last November, wrapped in a domestic rug.
He was bound with electrical wires and an extension cord and the carpet was neatly folded with each end tucked in and then bound with three strips of wire.
Officers with Strike Force Renfree, formed to investigate the murder, have revealed they believe he was shot dead elsewhere and driven to the river in his own blue 2005 Range Rover Sport 4WD.
Detective Inspector Mark Newham said yesterday that post-mortem examination results had showed Liu was shot repeatedly in the head up to 30 times with a high-powered nail gun.
"Similar types of nail guns can fire nails up to 85mm long," Insp Newham said.
Detectives said the nail gun used in the murder was a standard cordless, framing, gas-charged gun, widely available for sale and hire.