Complex sentence: In the manga, when Fumiyo Fujiyoshi got killed, Yukie was seated behind Fumiyo and watched her die and her desk was a pool of blood with Fumiyo's head lying on it and staring at Yukie.
Split into simpler sentences: In the manga, when Fumiyo Fujiyoshi was killed, Yukie was seated behind Fumiyo and watched her die. Her desk was a pool of blood, with Fumiyo's head lying on it, staring at Yukie.