You were just passing by at the pokemon center until you saw some blood??? You followed the blood tracks, it seems it was leading at the burned tower...you went inside until you saw Kris holding a knife..she started laughing like a maniac

"Ha...ha..ha..haAHAHHAHAHAHAHAHAHAHAHAHAHHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAH"