Yu Chen couldn't figure out why the wound presented such a strange pattern, but he didn't dwell on it too much, since the clues he had obtained were limited. Examining the body only through a screen, he knew there was still much information needed before any judgment could be made.
Although with the abilities of a Necromancer, he could have reconstructed the entire crime scene, Yu Chen chose not to do so. He had taken leave today specifically to assist Misumi Mikoto, intending to disengage from the consecutive major surgeries of recent days and refresh his mind. For him, deducing cases was a way to relax his brain and nerves. Cheating with the Necromancer's powers was unappealing; he preferred to rely on his own thinking and reasoning to decipher the truth.
Of course, if neither he nor Misumi Mikoto came up with the truth in the end, Yu Chen wouldn't mind resorting to the Necromancer's methods to find the answer.