Home Current News Security guard faces second-degree murder charge after killing at dueling protests in...NewsCurrent NewsSecurity guard faces second-degree murder charge after killing at dueling protests in DenverOctober 15, 202074FacebookTwitterPinterestWhatsApp The charges against Matthew Dolloff, 30, in the fatal shooting of Lee Keltner, 49, will be filed Monday in Denver District Court.Source: yahoo.com/news