Where is Their Moral Conscience?

There are people who believe that gun violence in our country will be curtailed by removing a few guns off the street. Well over 10 million guns are sold in the U.S. every year. So what we reduce guns sold by 10%. Our society is satiated with guns. There are a few that have shot people dead because they have no moral conscience. What happened to there moral conscience? How many murders are walking the streets of America?