Update: Sunday 10.12pm:
THE 25-year-old man charged with the murder of his father, Michael Martin, has remained in custody.
He appeared before Lismore Local Court on Sunday and was refused bail to reappear in Tweed Heads Local Court on Monday.
Police are expected to address the media prior to his appearance.
UPDATED Sunday 10.45am: IN a shocking twist, police have charged the son of the man who was murdered at Murwillumbah in June last year.
Michael Martin Jr was arrested at Tweed Heads on Saturday and charged with Michael Martin senior's murder.
The 25-year-old has been refused bail and will appear at Lismore Bail court on Sunday.
The arrest came after detectives conducted a number of search warrants in Esk, Queensland on Saturday.
A week ago Mr Martin Jr made a public appeal for anyone with information regarding his father's death to come forward.
ORIGINAL STORY: IT'S been nine months since Michael Martin Jr listened helplessly as his father was hacked to death, and the horror of that night continues to haunt him.
On June 13 last year, Mr Martin's 46-year-old father, Michael Martin senior, was murdered during a home invasion at his Quarry Rd, South Murwillumbah apartment.
"It's just something we haven't been coping with," she said.
On Sunday the 25-year-old made a public plea to help find his father's killers.
The day his father left hospital after a near-fatal attack in April, Mr Martin said his father had planned to leave town, but the next morning he was dead.
"I was going to help him make a new start," Mr Martin said.
During the June attack, Mr Martin said he feared for his own life, and didn't see the attackers.
"I got dragged down and taped up ... in the kitchen.
"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."
Mr Martin said while his father had drug problems, he didn't know why someone would want him dead.
"My father did have a colourful past, but he didn't deserve that.
"I have no idea ... what he'd done. I did ask him after the April bashing. Whether he didn't want to tell me or he didn't know himself, I don't know."
Tweed-Byron LAC crime manager Detective Inspector Brendon Cullen said a late 80s or early 90s brown Toyota Camry was seen in Quarry Rd on the morning of the murder.
Insp Cullen said police would like to speak to the owner or driver of the vehicle, with partial Qld plates "LAC", as they may be able to assist with inquiries.