Complex sentence: The missing pistol is wrapped in Mrs. van Schuyler's stole, which was apparently used to muffle the sound of a gunshot and prevent scorching, as seen around Linnet's injury.
Split into simpler sentences: The missing pistol is wrapped in Mrs. van Schuyler's stole. The stole was used to muffle the sound of a gunshot and prevent scorching, as seen around Linnet's injury.