Yes, and what firearms prohibitionists and their friends in the enemedia do not bother telling people here is that domestic murder/suicide incidents happen far more often in Japan than people realize. Cases of men coming home to find that the wife killed the kids and then herself are not uncommon there.
And IIRC those are recorded as “suicide”, not multiple murders + suicide.
One may notice that domestic rhetoric almost exclusively mentions “gun homicides” or “mass shootings”, inherently ignoring absolutely any homicide tool other than firearms.