ABOUT $2 million dollars' worth of insurance policies in Michael Martin's name were taken out before he was stabbed to death in his Murwillumbah home in June 2014, police will allege.
It comes as Mr Martin's daughter-in-law Candace Jodie Martin was extradited from Queensland to New South Wales, charged with conspiracy of murder and being an accessory to murder, before and after the fact.
Tweed Byron LAC crime manager Brendon Cullen said police will allege insurance policies "upwards of $2m dollars" were taken out in the 46-year-old's name before his death.
"We will be alleging she (Candace) had knowledge of those insurance policies," Det Ins Cullen said.
Police will also claim the 25-year-old "covered up" crucial evidence.
"... We will ... allege she was involved in aspects of planning of the murder and also in relation to aspects of covering up the murder," he said.
Det Ins Cullen said Martin Snr was stabbed, but no weapon has yet been found.
"Her knowledge of what happened with various items after the murder will be subject to that charge," he said.
At a press conference today police labelled the case a "complex murder investigation".
Michael Phillip Martin was charged with his father's murder in his South Murwillumbah apartment only a week after fronting the media to plead for more witnesses to come forward.
At the time Martin Jnr, 25, said a home invasion with masked men took place and he heard his father get killed.
"I got dragged down and taped up ... in the kitchen," Martin Jnr said at the time.
"I could just hear the noises of my father being killed. It was just terrifying. I never expected I'd see my wife and children again."
Last month the father-of-two appeared in Lismore Local Court and mouthed "I love you" to his family, watching on from the gallery. He did not apply for bail.
Former private school girl Jessica Honey Fallon, 21, has also been arrested and charged with attempting to murder Martin Snr in April last year.
He was stabbed in the eye during that alleged attack, and was back at his home for one day before he was killed.
Today police said they will continue to investigate the possibility of other suspects in Martin Snr's murder.
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