Does anyone remember a killjoy's voiceline that goes something like:

"My bots don't malfunction. They only did that one time and honestly she won't miss that finger"

Now there's a new Reyna voiceline where she says

"I remember the machines Killjoy made. What did they do- Nevermind. It does not matter" in a very angry tone.

So, possibly killjoy's tech unintentionally hurt someone?!? What did they do? Why does Reyna hate her so much?!?

Let me know your speculations and conspiracies.