Confusion As Aiia's Killer Pleads Not Guilty, Then Guilty After Intervention

An aspiring rapper shocked a Melbourne courtroom by pleading not guilty to raping murdered international student Aiia Maasarwe, before reverting back to his original guilty plea.

Codey Herrmann pleaded guilty last week to killing Maasarwe, whose body was found near a tram stop in Melbourne's north on January 16.

But when he was officially arraigned in the Supreme Court on Wednesday he stroked his beard and answered "not guilty" to the rape charge, prompting intervention from his barrister and a do-over where he pleaded guilty to both charges.

More to come.