TexasCHLforum.com

I already read all of that. I still don't see anything in there that supports the idea that the boyfriend did the shooting.

However, the reality in this case is that the boyfriend was playing around with mom's gun, not one of the kids.

That wasn't mentioned in the linked article. Did you read/hear it elsewhere? It seemed clear to me that the only new information is that the boys were playing with the boyfriend's weapon rather than the mom's and that it wasn't jostled in the backpack.