Complex sentence: Dennis arrives claiming that Citra saved him and the other followers, attempting to kill Jason for betraying Citra, but Citra moves in front of Jason and is stabbed, mortally wounding her.
Split into simpler sentences: Dennis arrives claiming that Citra saved him and the other followers. He attempts to kill Jason for betraying Citra, but Citra moves in front of Jason and is stabbed, mortally wounding her.