Cissy Chen's partner has been found not guilty of her murder.

Yun Qing 'Jack' Liu, 58, was acquitted of killing the 45-year-old accountant, who went missing on November 5, 2012.

Ms Chen's body was found 16 months later in a stream in a reserve in Totaravale, 11km from their home.

Yesterday afternoon, the jury returned the verdict as Ms Chen's two brothers watched on.

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Liu's lawyer Michael Kan told the jury the Crown could not prove where, when, how or why the victim was killed, beyond reasonable doubt.

The jury agreed.

Liu's legal team rejected any notion of a rift between their client and Ms Chen and pointed to the evidence of witnesses.

After the verdict was delivered, Justice Sarah Katz discharged Liu, who has spent the last 10 months on electronically-monitored bail.

Ms Chen's brother said his heart was broken after the jury delivered the not-guilty verdict.

Outside court he said he did not want the case reopened because he believed there was no one else with the opportunity or motive to kill his sister. NZME.