 Police then visited her and advised her to increase her security for fear she could be shot.In 2008 it was revealed that, since the shootings, up to 20 people had been arrested for questioning but none had ever been charged.In January 2010 a reserve Police Service of Northern Ireland officer (formerly an RUC officer) was arrested by detectives from the Police Ombudsman's Office and questioned over "perverting the course of justice" and "aiding the killers' escape".