Can a republican or nationalist ever get justice form Sinn Fein

A question that needs to be asked, what justice can an ordinary nationalist and republican get, if the victim in this case is being obstructed by Sinn Fein/IRA?
Remember the recent incidents involving Robert McCartney, Paul Quinn and the disappeared. The cover ups, the denials and smears. The slow release of information to the families of the disappeared and the character assassination of the disappeared and the Robert McCartney sisters and the Paul Quinn family!!!
Gerry Adams the man who all through his public life has denied being in the IRA, and has denied his full roll in several infamous incidents during the so called troubles. So spinning and covering up are hardly new to Adams or Sinn Fein/IRA.
Here I believe is the issue that goes to the heart of the matter an issue that nationalists and republicans are in complete denial about. Do the ordinary nationalists and republicans want to be represented by people and a party that when a young girl asks for help and justice, all she gets are lies, attempted cover up and half truths. Adams is the master in the tactics of deflection, spin and reverse victim-hood, all the tactics he has used in the case of his brother.
The ordinary nationalist and republican needs to throw the shackles of the, see no evil, hear no evil, speak no evil, collective monkey off their backs. And see Adams and Sinn Fein/IRA for what they really are, a party and group that care little for the people they allege they represent. A party when people need justice form them, all they get is obstruction, smears, absconding and justice denied.
Until ordinary nationalists and republicans, realize that Adams and Sinn Fein/IRA have a vested interest in keeping them and their communities subjugated then the cycle of some old, same old in nationalist and republican areas will continue forever.
I’m sure there are more of these cases yet to be uncovered, and at some stage they will be forced out, to infect the nationalist and republican communities. Nationalist and republican communities need to remember as the next scandal breaks how efficiently the Sinn Fein/IRA machine went into overdrive to obstruct, smear, clean up and cover up paedophilia and murders. Is there nothing they won’t stoop too, to cover up for the party’s apparatchiks or other IRA players!!!
To quote Thomas Jefferson: “When the people fear the party (Sinn Fein/IRA), there is tyranny; when the party fears the people, there is liberty.”
Tyranny in nationalist and republican communities is prevailing!!!