Decision not to prosecute psni

According to a news report yesterday, northern Ireland prosecutors were seemingly studying the phenomena of the psni shooting into residential areas and the subsequent death of three, 51 years ago. Results are a decision not to proceed.
Reportedly, experienced prosecutors were investigating three deaths believed to have occurred on 15 August 1969. Nine year old Patrick Rooney was said to have been shot by psni officers as he lay in bed after police fired a machine gun from an armoured car in his street in west Belfast. Another incident happened about 1 am in the morning when according to reports father of two, 28 year old Hugh McCabe was fatally wounded whilst trying to help an injured man on a balcony near his home in the Divis flats complex. According to the prosecuting team, there is no reasonable prospect of convicting the two former northern Ireland police officers involved in the incidents.
Samuel McLarnon, 28, was shot dead whilst in his home in north Belfast, the prosecution say the the only known suspect is deceased.