An X-ray shows multiple nails embedded of the skull of 27-year-old Chen (Anthony) Liu that homicide squad detectives allege were fired from a high-powered nail gun in this police handout image made available April 24, 2009. Police believe Chen, whose decomposing body was discovered in Sydney’s Georges River in November 2008, was killed by being shot repeatedly in the head with a high-powered nail gun. REUTERS/New South Wales Police/Handout