What are four main causes of firearm incidents?

1. Lack of training: Many people who are involved in firearm incidents have not received proper training on how to safely handle and use firearms. This can lead to accidental shootings, as well as intentional shootings due to a lack of understanding of the proper safety procedures.

2. Mental illness: People with mental illness are more likely to be involved in firearm incidents. This is because mental illness can affect a person's judgment and decision-making abilities, making them more likely to engage in risky behaviors.

3. Substance abuse: People who are under the influence of alcohol or drugs are more likely to be involved in firearm incidents. This is because alcohol and drugs can impair a person's judgment and coordination, making them more likely to make mistakes.

4. Domestic violence: Firearms are often used in domestic violence incidents. This is because they are easy to access and can be used to intimidate and control victims.