Access to guns doesn't cause suicide. Suicide is a mental health issue. The japanese have a higher suicide rate than the US and almost no access to guns. Guns may make it easier, but if someone is ready to die they are going to get it done.
Suicide and mass shootings are both mental health issues. I said that.
What I also provided was statistics that show suicide rates by firearm in states with relaxed gun laws is much higher than other states. The same statistics for suicide by other means do not vary as much. You can ignore that if you choose but that doesn't make your opinion accurate.