(Capcom's primary storyline)
Sebastian was a resident to a pagan communal village in an Eastern European mountain range.
Sometime before Ethan Winters, Leonardo and Elena's arrival at Luiza's house, he had managed to reach into her property albeit in a very injured state, losing his right eye and is crippled. He walks around using a crutch.
When the trio arrived there, Ethan asks if this is all that's left of the village and another drunken villager named Anton starts to go on an angry lecture and he regards Sebastian as a worthless invalid. When Roxana, another villager suggests that they should pray for Vasile and their safety, he joins hand and starts chanting prayers.
When Leonardo starts to roar in pain and exhibit Lycan like behaivior, he slaughters everyone in the room including Sebastian, whose throat is ripped by Leonardo with his bare hands.
- Resident Evil Village (2021), file: "Diary".