> If someone constructs something dangerous like an explosive and then hand it off for someone else's use they'd be culpable as well, wouldn't they? As others

> If someone constructs something dangerous like an explosive and then hand it off for someone else's use they'd be culpable as well, wouldn't they? As others have commented, it would depend on the person's intent. If an explosive making company sells some explosives to a construction company for use in excavation, but then the construction company misuses the explosive and kills people, the explosive making company wouldn't be liable. But if person A makes some homemade explosives and gives them to person B to put into a bomb, and the bomb kills people, yes, we would hold person A liable. But even in that case the basis wouldn't be "reckless disregard for consequences", it would just be straight up murder.