But how would that have stopped Lanza from getting a gun? All the proposed gun laws do is punish law abiding citizens from owning guns. It does nothing to stop criminals from obtaining gums criminally and does nothing to deter criminals from committing crimes with guns. All it does is punish legitimate gun owners and make white upper middle class people feel good because it 'deters their suburban malls from getting shot up.' The reality is the majority of gun crime does not happen in suburban white America, but when it does it scares them enough to let congress rape the 2nd amendment to keep them safe.
How many times do some people need it explained? Yes, gun control laws reduce the number of guns available to criminals.
Every gun starts out as 'legal'. Then whether because of background check loopholes, straw purchases, stealing the guns from legal owners, they fall into criminal hands.
Gun control that reduces the number of guns for 'legal' buyers means fewer available to fall into criminal hands.
Fewer to steal out of the homes of legal owners, for example. Not to mention extra charges for the criminals who do get them illegaly.
Reduced supply also increases the price to criminals.