Her info card. [ She's too tired to fully explain it, so she pauses briefly to settle comfortably in her bed. ] It said she was an expert with knives. She carried a knife with her.

Rin was killed in the music room. Dave was killed by a katana. [ She lifts her arm, does a little motion with her hand, and lets it fall to dangle off the side of the bed. ] It's a theme.