Graham Dwyer has lost his final legal attempt to appeal his conviction for the 2012 murder of childcare worker Elaine O’Hara, as the Supreme Court dismissed his case on grounds related to the admissibility of mobile phone data evidence. Dwyer, who has maintained his innocence since being convicted in 2015, argued that the phone metadata used against him was collected under a now-defunct 2011 Irish law that violated EU regulations. While he previously won a separate legal battle regarding the retention of his mobile phone data, the Supreme Court found that the evidence presented at trial was sufficient to uphold his conviction. The court highlighted that even without the disputed phone data, other evidence linked Dwyer to the crime. The ruling concluded a lengthy legal saga that has spanned nearly a decade, with Dwyer exhausting all avenues for appeal. Family members of Ms. O'Hara were present at the court during the hearing, reflecting the case's emotional weight.