A Knoxville man was arrested following a domestic abuse assault involving his adult son. According to court documents in the early morning hours Monday, law enforcement officers responded to the 1300 block of South Lincoln Street in Knoxville regarding a physical altercation between a father and his adult son. When officers arrived they met with 39-year-old Patrick Murphy who told officers he had been consuming alcohol with his son when they got into an argument that became physical. Under further investigation officers determined that Murphy had pushed his son which initiated the physical altercation. Murphy was arrested and charged with domestic abuse assault third or subsequent offense, a class D felony.