On the issue of the availability of firearms making suicide more likely I would like to offer the following observations.
I teach school in a small community of approximately 500 people. In the last ten years, there have been several suicides. Two were middle-aged women who overdosed. One was a young man who hanged himself. Another, upon being diagnosed with cancer for the second time in his young life (25), plugged the cracks in his bedroom windows and under his door, drank paint thinner, slashed his wrists, and shot himself. Still another, who had a history of mental disturbance, attempted suicide on three separat occasions, slashing her wrists, taking an overdose, and, finally, shooting herself. Then there was a husband and father who shot himself after an argument with his wife. Lastly, a former student of mine, depressed and strung out on drugs, had an argument with his wife and shot himself.
All of these attempted suicides were successful. These people used several different methods to achieve their goals. Even those with guns would have found a way in the weapon had not been available.
Regards, Shuckins