The witness contacted police only after the prosecution closed its case, she told Sydney's Downing Centre Local Court, because she had thought there would be "ample" evidence without hers. While the Crown prosecutor, Mark Tedeschi, painted Gittany as a "cold" and "calculated" killer who deserved to be locked up for life, his new girlfriend, Rachelle Louise, called him "the best boyfriend I've ever had".
As well as giving him a glowing character reference, the 24-year-old model led a demonstration outside court, where she, with some of his family and friends, brandished placards proclaiming his innocence and comparing him to, among others, Lindy Chamberlain.
Gittany, who claimed during the trial that Harnum had been emotionally unstable, is expected to be sentenced next Tuesday, although Justice Lucy McCallum said she would confirm the date this morning.
Tedeschi asked that he serve the statutory non-parole period of 20 years, as he had shown a complete lack of remorse. His defence barrister, Philip Strickland, said he came from a good family and was unlikely to reoffend.
Strickland accused the new witness of fabricating her evidence, and asked McCallum not to take it into account, as it came "way too late".
Taking the stand for a second time, Gittany insisted he was innocent. "It is a tough thing to deal with," he said. "I am charged [sic] with a crime I did not commit. It is a cross almost too unbearable to bear."