According to Fox News:
People who report “firearm access” are at twice the risk of homicide and more than three times the risk of suicide compared to those who do not own or have access to firearms.

Domestic violence is more likely to turn deadly with a gun in the home. An abusive partner’s access to a firearm increases the risk of homicide eight-fold for women in physically abusive relationships.

Research published in the New England Journal of Medicine found that living in a home where there are guns increased risk of homicide by 40 to 170% and the risk of suicide by 90 to 460%.