An arrest warrant has been issued for the ex-boyfriend of murdered former BHP executive Cecilia Haddad

NSW PoliceCecilia Haddad.

New South Wales police have issued an arrest warrant for the ex-boyfriend of Cecilia Haddad, the 38-year-old former BHP executive whose body was found in the upper reaches of Sydney Harbour in late April.

Mario Marcelo Santoro, 40, who left Australia, flying from Sydney to Brazil, reportedly to see his sick father shortly before Haddad’s body was discovered by kayakers, is now the prime suspect in her murder.

If he returns to Australia he will be charged with murder.

NSW Police say they are unable to comment on what stage their investigation has reached at this point.

Haddad, a Brazilian national, was running a supply chain consultancy in Sydney after initially moving to the city in 2016 to work for a logistics company. Prior to that, she spent almost a decade at BHP Billiton in Western Australia, where she rose through a range of increasingly senior roles, eventually working in iron ore supply chain management.

Before coming to Australia, she worked at Brazilian mining giant Vale in Rio de Janeiro as an analyst.

She had recently separated from Santoro, who had been living with Haddad in her Ryde apartment. She’d reportedly asked him to move out in the weeks prior to her disappearance.

Haddad was at a barbecue on the Friday evening before her body was found floating in the harbour near Woolwich, an affluent suburb on Sydney’s lower north shore on Sunday, on April 29. She’d spoken to friends on early on Saturday morning, but after that, failed to appear for several appointments and concerned friends contacted police.

News Ltd reports that NSW police sought Santoro’s extradition from Brazil with help from the Australian government. The two countries have an extradition treaty, but Brazil is reportedly reluctant to extradite its citizens.

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