Complex sentence: Kate does not want to take part in Jack's plan and leaves; however, an Other refuses to let her go, prompting an unseen Sayid Jarrah (Naveen Andrews) to shoot the Other.
Split into simpler sentences: Kate does not want to take part in Jack's plan and leaves. However, an Other refuses to let her go, prompting an unseen Sayid Jarrah (Naveen Andrews) to shoot the Other.