Ciara Nolan, with an address in Birmingham, England, but originally from Artane, north Dublin, was extradited from the UK on Wednesday.

Mr Tighe-Ennis was walking home when he was shot twice in the head by a gunman in a suspected gang-related attack

Jamie Tighe-Ennis (24) of Timberhill Apartments, Artane, suffered fatal gunshot wounds to the head when he was attacked on Moateview Avenue, Priorswood, Dublin 17 in 2017.

Jamie Tighe-Ennis (24) of Timberhill Apartments, Artane, suffered fatal gunshot wounds to the head when he was attacked on Moateview Avenue, Priorswood, Dublin 17 on October 28, 2017.

Gardaí said investigations are ongoing.