Photo: Casey Dillan Lawson A 20-year-old rural Mountain Home man, who is alleged to have assaulted his mother, leaving her with serious injuries, made a second unsuccessful try at entering a guilty plea to his charges during a session of Baxter County Circuit Court Thursday. In late September, the plea taking came off the rails when Casey Dillan Lawson could not stop laughing as the facts behind his charges were read. According to court records, Lawson has dealt with significant mental health issues for some time. The original agreement, worked out by prosecutors and defense attorney Mark Cooper, called for Lawson to receive a six-year prison sentence with five suspended and one to serve.