Speaking from experience here, I have attempted suicide by overdose twice. Using OTC drugs when I was 19, and with prescribed (to me) drugs when I was 38. I decided it's not a very successful route to take unless you take certain combinations, mix with alcohol, yada yada. Last August, I had a plan to "do it right" this time on my 48th birthday. The only method I considered was using a gun. God was watching over me, and a few days before I was to put my plan into action, a trip to the doctor for a medical reason led to a doctor suddenly out of the blue asking, "Have you been having thoughts of harming yourself lately?" (It was a new doctor, who knew nothing of my history). I broke down then, and told her I actually had a plan. That particular doctor's office had counselors there as well and she asked if she could send one in to talk to me. A therapist came in and we talked for a bit, and I consented to him calling my psychiatrist right then and promised to call him myself as soon as I got home. I did. There was a med change and it wasn't long before I was feeling better and I was able to keep the suicidal thoughts at bay.
Anyway, that may be why more and more people are using guns. It's a more, no pun intended, "sure-fire" way to get the job done. I've been greatly saddened this week by all the suicides and can't help think of the families and what my own family would have gone through.
Sorry for the O/T.