Firearm—In 2014, 33,599 persons died from firearm injuries
  in the United States (Tables 18 and 19), accounting for
  16.8% of all injury deaths in that year. The age-adjusted
  death rate from firearm injuries (all intents) did not
  change significantly in 2014 from 2013. The two major
  component causes of firearm injury deaths in 2014 were
  suicide (63.5%) and homicide (32.6%). The age-adjusted
  death rate for firearm homicide decreased 2.8%,
  from 3.6 in 2013 to 3.5 in 2014. The rate for firearm
  suicide did not change.

You should understand that firearm-related injuries will be proportionately worse. Moreover, toddlers kill people at the rate of about 1 per week which is significantly greater than terrorism deaths except for 2001 (2908 with 9/11) and 1995 (171 with Oklahoma City).

https://www.washingtonpost.com/news/wonk/wp/2015/10/14/peopl...