Mr Rossiter was shot dead around 6.45am on October 17 after answering the door at a house in Church Lane, Golden, Co Tipperary.
His younger brother, Brian Rossiter, was 14 when he died in hospital in 2002, three days after falling into a coma at Clonmel garda station after being arrested under the Public Order Act.
Mr Rossiter's father Pat Rossiter and uncle Michael Keating were in court for the special sitting.
They sat at the opposite side of the courtroom from the accused.
Power was brought from the garda station by three detectives in an unmarked patrol car.
Maurice Power wore a grey Adidas hoodie top along with black Nike tracksuit bottoms and a pair of black trainers.
The court heard that after being charged at the garda station, the accused said to gardai: "The man would still be alive today if he didn't drive me to do what I done."
He was not called upon to speak during the court sitting except when he was asked by Judge Terence Finn to confirm his identity and his age.
Sergeant John Keane told the court that he arrested Maurice Power at 8.40pm on Saturday night at Clonmel garda station and charged him at 9.27pm.
Inspector Patrick O'Cal-laghan asked for the accused to be remanded in custody and solicitor Eamonn Hayes asked that legal aid be granted as the accused was on social welfare.
Judge Finn granted free legal aid and remanded the accused to appear before Cashel District Court this Wednesday, December 19.
Mr Rossiter and Mr Keating left the courthouse after speaking with Detective Inspector William Leahy who is leading the murder investigation, before Maurice Power was driven away by gardai.
Seven people were arrested last Monday as part of the investigation into the murder of Shane Rossiter
A further three people were detained on Tuesday.
All but three of the 10 -- eight men and two women ranging in age from early 20s to early 40s --have been released without charge.
As well as Maurice Power, two men remain in custody.