A Galt resident has been charged with 1st degree murder following an incident at 200 North Main Street Thursday afternoon.  According to the probable cause statement,  Patrick Courtney, 34, shot and killed Christopher Molloy, 32, with a 22-caliber revolver.  The report states the men had a physical altercation  prior to Courtney going to a residence, retrieving the firearm, and returning to fatally injure Molloy. Courtney will be arraigned in Grundy County on Tuesday.