Steve Chapman questions the connection between gun ownership and suicide:
As it turns out, the claims about guns and suicide don't stand up well to scrutiny. A 2004 report by the National Academy of Sciences was doubtful, noting that the alleged association is small and may be illusory.
Florida State University criminologist Gary Kleck says there are at least 13 published studies finding no meaningful connection between the rate of firearms and the rate of suicides. The consensus of experts, he says, is that an increase in gun ownership doesn't raise the number of people who kill themselves—only the number who do it with a gun.