Interesting note here on gun control/gun availability and firearm homicide.
The U.S. is only ranked #15 worldwide for firearm homicide, while the countries ranked #1-14 have a combined gun availability of a mere 10% of what the United States has, but a combined homicide rate of 460% of the United States. To follow the trend set by these other countries, assuming gun availability as the cause, the United States would need to kill 670,000 people every single year with firearms.
Guess what these 14 countries actually have in common that could motivate such violence? Political and economic instability. Poor standards of living, inequality, all things that the United States also sucks at compared to first world nations. It's not about the guns. It's about what makes people use them.