Defence lawyers for 33 year-old Jamie Leopold will call their first witness today in Nova Scotia Supreme Court. The Liverpool man has pleaded not guilty to a charge of second degree murder in the death of Laura Lee Robertson. Crown attorney's presented their final piece evidence on Monday in Bridgewater. The twelve member jury heard Leopold describe details of Robertson's death yesterday which he said was caused by a single blow to the neck on the night of April 13th, 2011. The details were revealed to the panel towards the tail end of a marathon interrogation interview. The jury heard Leopold tell investigators they were both drinking heavily at the time and her death was accident. The trial is expected to wrap up on Friday.