1. Colorado governor signs 4 major gun bills into law to make it harder to obtain firearms  Axios
2. Colorado gun regulations overhauled as governor signs 4 bills  The Colorado Sun
3. Rocky Mountain Gun Owners file lawsuit against Polis  FOX31 Denver
4. Colorado governor signs 4 gun control bills after massacre  The Associated Press
5. Colorado Democratic governor signs 4 gun control bills into law  CNN

Source: Google Finance – Market News