Civillian shot by British soldier subsequently found to be unarmed.
Reading further background on the case it appears any weapon he posessed was removed before he travelled to Belfast, they knew he was going to be there, evidence highlighted that depite him running away almost all the shell casings were found in close proximity to the body.
Sounds like RUC had someone inside OIRA which suggests more than a chance encounter.
Maybe an attempt to remove someone to ensure a source moves higher up the pecking order.