Benevolent Tax Credits Mo. Gov. Nixon Signs Amateur Sporting Events & Benevolent Tax Credit Bills Into Law By Marshall Griffin • Mar 29, 2013 Tim Lloyd, St. Louis Public Radio Two tax credit bills passed by Missouri lawmakers have become the first ones signed into law this year by Governor Jay Nixon (D). Mo. Gen. Assembly Sends Benevolent Tax Credits Bill To Gov. Nixon By Marshall Griffin • Mar 14, 2013 (Tim Lloyd for St. Louis Public Radio) Two sets of tax credits were passed by Missouri lawmakers Wednesday and sent to Governor Jay Nixon (D).