Shuuji Goutouda is the fourth death, and the first death in the main town, as the first three died in Yamairi. He is mentioned in episode 2 as dying August 6.
He is encountered in episode 20.5. He was found hiding in the pipelines along with multiple other Shiki when the humans came in. Believing he was asleep, the humans quickly staked him, only for him to wake up screaming in pain, which in turn alerted the other Shiki to the humans' presence.