John Edward McNicholl loses appeal over murder extradition

This report is a localnews.ie summary based on public court reporting and records; sources are listed below.

John Edward McNicholl lost his appeal against extradition on murder and attempted murder charges at the Court of Appeal, reported on 16 March 2026.

The court upheld the order for his surrender to Northern Ireland, but stayed extradition to allow him to ask the Supreme Court to hear his case. The charges relate to Constable Robert John McPherson’s 1975 murder in Dungiven, Co Derry, and the attempted murder of a second constable.