Loose Trigger
A Fiorenzo is the company mechanical engineer, and got a memo back from testing the other day that the trigger for the Sureshot prototype was
way too loose. Since it isn't quite a real gun, it doesn't need the mechanical action a real gun would: it just activates the bullet, really. So sie had built an arbitrary trigger, which is more like a toy laser gun's, very much a hair-trigger, without thinking about the implications.
None of which was a problem until Seamus was passing through the breakroom during his rampage. At that point,
E Martin's daughter jumped up to protect her parent, Seamus swung around, startled, and fired totally by accident. Sureshot being Sureshot, he killed her, and after a moment of horror ran down the hallway screaming, "Nononono..."
A Fiorenzo should not have put this cause and effect together in hir character sheet, but all of the pieces should be relatively available.
