These charts explore density of gun ownership per 100 people and homicides per 100,000. In almost all countries (even Yemen), the higher density the gun ownership is - the less the homicide rate is. The only exception appears to be Mexico where the homicide rate is more prevalent than the gun ownership. Meanwhile, the far east Asian countries have low gun ownership and low homicide rates.
Of course, many variables factor into homicide rates; however, the correlation between gun ownership and lower homicide rate can not be dismissed. I hope the charts promote thinking a bit deeper than the propaganda of a few media segments, political rigaramoo or emotional reaction to current events.