Another horrifying non-gun incident from Japan:

A 77-year-old man was arrested Tuesday on suspicion of killing his entire family with a hammer, including a 4-year-old granddaughter, Japanese police said.

They also found the bodies of Kiuchi's 4-year-old granddaughter, 75-year-old wife, 49-year-old son and 44-year-old daughter-in-law

Combine this with the fact that Japanese suicides were near a record high last year despite a major government program to reduce them, and one might begin to suspect that removing nearly all guns from society doesn't solve all the problems that gun control activists suggest it would.