If it is now impossible to bring the perpetrators to justice then there must be a case for bringing those to justice who failed to catch the killers.
The political leaders of the UK at the time are still alive, so are many of the senior officers in the security forces, they must share the burden of guilt for failing to catch the killers.
The bomb was placed in property belonging to a Babylonian chapel, it was never searched. Perhaps I am wrong about this, if I am someone can correct me.
Antichrist meets Thatcher 1977
Antichrist meets Thatcher 1980
Antichrist meets Thatcher 2009
Is it any surprise no one was apprehended?
Whoso sheddeth man's blood, by man shall his blood be shed: for in the image of God made he man.