Hitomi's chances of living were slim. The medical ninjas could only do so much. The use of her bloodline limit had weakened her so much she couldn't heal from the damage done to her internal organs by the Hyuuga. Itachi could have killed that boy, but when he went to do it he was already dead. Itachi stayed by Hitomi's side for four days, she wasn't waking up. With every minute his anger grew. He wanted to hurt someone for what was happening to Hitomi. He hated. He hated so much he could burst.
Shisui.
Shisui could have stopped the fight when Hitomi was being attacked on her knees. It was his fault she was like this. If she had not used her power she could have been healed by now.
He could kill two birds with one stone.
