Entertaining Vietnam
http://maggiesfarm.anotherdotcom.com...of-a-Film.html
Link to the 53 minute film is at the site.
Rather good I thought.
About 3/4's of the way through they mention the killing of Cathy Wayne -
"...... Sadly, one Australian entertainer was killed. Cathy Wayne died performing at the United States Marine Corps base at Da Nang when she was shot in the chest. The sergeant accused of the killing was convicted but served just two years before being released, leaving the killer's identity and motive a mystery................."