You were inspecting one case in an abandoned building with Dazai. You were about to leave the basement until you noticed something. You approached and Dazai's expression went dark as he understood this was evidence for his crime, the blood in that was his and he knew, it will be clear once they check the dna. He couldn't let that happen. He casually handed you one small cylinder with liquid inside and it exploded, the glass made open cuts on you as the liquid passed to your blood.