"Two patients are dead and a third is in police custody following a fatal stabbing at a secure psychiatric hospital in Melbourne's inner north.
The violent incident occurred at the Thomas Embling Hospital in Yarrabend Road, Fairfield about 11pm yesterday..."
I believe the link below leads to this particular press release, and also contains a news video.
http://www.brisbanetimes.com.au/national/two-men-stabbed-to-death-at-psychiatric-hospital-20091105-hygz.html