A NSW jury has retired to consider its verdict in the trial of a former nurse accused of deliberatly giving two aged-care residents leathal injections of insulin. Megan Haines, 49, has pleaded not guilt to murdering Marie Darragh, 82, and Isobella Spencer, 77, in May 2014 at Ballina’s S Andrews Village. Supreme Court Justice Peter Garling finised summarising the evidence this morning before asking jurors to retire.