Blind eyewitness Ms. Langley tells police the driver she encountered is a serial killer but offers no hard proof. Using footsteps, chair sounds and scent she profiles him: about 35, roughly 6 ft 1 in, heavyset, calluses on his right index and thumb, recent hair loss (minoxidil scent), scratch marks, and a faint lavender odor masking formaldehyde and blood. She notes frequently cleaned seats and a dull engine, identifying a Nissan Sylphy, while an officer insists it looks like a black Audi A6L. Police record her detailed account but demand independent confirmation, leaving the lead unresolved.