 Although the British Army was aware of this, Jackson was apparently never told, due to the risk of him becoming an informer himself.According to the 2003 Barron Report, Mulholland had been identified from police file photographs as the driver of the Parnell Street car bomb by three separate eyewitnesses in Dublin during the Garda investigation into the bombings.Hanna was on the list of suspects established by both the Garda and the RUC for the Dublin bombings ; however, he was never arrested or interrogated in connection with the incident.