“...I saw the story all over the place...”
The story I heard reported in the media was that a man dressed as Santa Claus shot his family at a Christmas party.
The story implied a gun-loving Christian massacred his family.
“Muslim honor killing” was not the reported story.
I believe it took some time before the perp and victims’ religeon was verified. Whether or not it could be considered an “honor killing” was/is open to speculation until sufficient facts were/are gathered. But the story seems to be evolving in the news as it should.