Martin Hayes had a history of violence and aggression towards his partner Amadea McDermott before he stabbed her, causing her death in July 2017

Martin Hayes had admitted using violence against mother of two Amadea McDermott (27) in his own evidence to the trial, which also heard that he used a hidden app to access her phone

A garda witness told the jury that the deceased's sister, Eucharia McDermott, alleged that Mr Hayes had been physically abusive to Amadea in the past.