Because the two individuals created by transporter duplication are identical to the person who existed prior to beaming, the term “transporter clone” could apply to either of them
But one is not just psychologically but also spatiotemporally contiguous with the person before beaming. That’s the one which is killed. It’s commonly assumed that psychological+spatiotemporal continuity is sufficient for personal identity, in which case the killed person wouldn’t be a clone.
I think you mean to say the original is killed, not the clone.
Either way, see source:
But one is not just psychologically but also spatiotemporally contiguous with the person before beaming. That’s the one which is killed. It’s commonly assumed that psychological+spatiotemporal continuity is sufficient for personal identity, in which case the killed person wouldn’t be a clone.