After almost 70 years of marriage, Mrs Tang - suffering dementia - allegedly killed Ching Yung Tang in their plush sixth-floor unit in the Connaught apartment complex overlooking Sydney's Hyde Park on March 12, 2010.
It is said that Clara believed her husband was trying to poison her. She allegedly confessed to the murder.
Is 92 too old to stand trial for murder? Is there a point where the cost of proceeding outweighs the need for societal justice?
Les Kennedy of the Sydney Morning Herald has more: Link