The main way to reduce deaths by suicide is to restrict access to means and methods, especially those which have high lethality. Guns are 1) very lethal 2) irresponsibly stored in many US homes. It's a valid suicide prevention measure to tell people to store their guns correctly.

Here's the link to the CDC, clearly showing they see suicide as violence: https://www.cdc.gov/violenceprevention/datasources/nvdrs/ind...

> In the United States, seven people per hour die a violent death. More than 19,000 people were victims of homicide and almost 45,000 people died by suicide in 2016 alone.

> To help find ways to prevent violent deaths, we need to know the facts. The National Violent Death Reporting System (NVDRS) links information about the “who, when, where, and how” from data on violent deaths and provides insights about “why” they occurred.

> NVDRS is the only state-based surveillance (reporting) system that pools more than 600 unique data elements from multiple sources into a usable, anonymous database. NVDRS covers all types of violent deaths – including homicides and suicides – in all settings for all age groups.