The ex-husband of a convicted child killer will not give DNA evidence that could clear her name.
Kathleen Folbigg, 54, was convicted of the deaths of her four children and has spent the last two decades behind bars in Australia.
The mum of Patrick, Sarah, Laura and Caleb was convicted of the murder of three of them in 2003 - she was given manslaughter for Caleb's death - but evidence has now revealed her children carried a genetic problem that caused irregularities with their heart.
