Garda murder accused 'out of touch with reality' after shooting, trial hears

At the Central Criminal Court, a general practitioner testified that Stephen Silver appeared disconnected from reality in the hours following the fatal shooting of Detective Garda Colm Horkan at Castlerea, County Roscommon on 17 June 2020. Dr Greg Kelly described observing the accused, aged 46 and from Foxford, County Mayo, exhibiting restless and agitated behaviour at Castlerea Garda Station, including paranoid ideation and speech patterns suggestive of acute psychiatric disturbance. The doctor administered an anti-psychotic medication and recommended psychiatric assessment, believing Silver was experiencing a manic episode consistent with bipolar disorder. Later that day, Dr Kelly noted the accused appeared unnaturally detached from the gravity of events. The State Pathologist detailed that Detective Garda Horkan sustained eleven gunshot wounds, including injuries to vital organs, with forensic evidence indicating some shots were fired from close range. Silver has pleaded not guilty to murder but guilty to manslaughter by reason of diminished responsibility. The defence argues mental illness substantially reduced his culpability at the time of the shooting.