by a gang of intruders who had smashed their way into their house.The 45-year-old was forced to listen as the gang set about her son and left him with serious injuries including a punctured liver, two abdominal wounds, one to each buttock and his thigh.Detectives have launched an investigation and are treating the incident, which happened in Edinburgh last night shortly after 11pm, as attempted murder.Police sources said the drama kicked off when the 19-year-old victim and his brother were