The Encrypted Massacre Investigation

"Very good observation. A man by the name of Aizawa left the case early, afraid of being murdered by Kira. He had a family, so nobody would blame him. He is the man in this picture, and the least involved in the case." He pulls out another picture. This was a younger man in his late twenties with the same wound as Aizawa, only the slash was across his chest. "That is Matsuda. The next to least involved in this case."