"She stated that Robinson began to date his roommate, a biological male who was transitioning genders.”

It's understandable that a shocked and reeling mother is grasping desperately for scraps to explain something inexplicable to herself and the world.

For my part, I don't see that it makes a bit of difference who thought what, or believed what, or who leaned or didn't lean one way or the other, or who was or wasn't transitioning, or who hated or loved or couldn't have cared less.

Those are just thoughts.

The media unfailingly reports each time: "Authorities are searching for a motive." Why? What will that accomplish?

Isn't the means the real problem?

What I do think would be enlightening is for her to say, even if it is only to herself, in the midnight of her soul,

"Boy, though, we sure did make a big deal out of guns in our lives."