The scenario you're describing, known as the "tachyon murder paradox," involves hypothetical particles called tachyons that are theorized to travel faster than the speed of light. However, it's important to note that tachyons are purely theoretical and have not been observed in reality.
In the context of the paradox, the bullet hitting the victim before being triggered seems contradictory and goes against our understanding of causality and the flow of time. It creates a logical inconsistency because events are generally expected to occur in a sequential order.
However, it's crucial to remember that this paradox arises from hypothetical circumstances involving particles that violate the currently accepted laws of physics. The concept of tachyons traveling faster than the speed of light introduces numerous complexities and challenges our fundamental understanding of causality and the nature of time.
Since tachyons are hypothetical and have not been observed, it is challenging to provide a definitive explanation for this paradox. It is often considered a thought experiment used to explore the consequences of hypothetical faster-than-light particles. In reality, our current understanding of physics does not support the existence of such particles, and their behavior remains speculative.