She says nylon is relatively common as an apparel fiber.
She does not know the source of the fiber.
I say:
The fibers at DW's house and in the MH are similar to the fibers on Danielle van Dam's body---a body that did not have clothes to retain fibers. So how did the fibers get on and around Danielle and in Westerfield's home and motorhome?
As VRWC_minion points out, DW would have showered and changed clothes in his house before driving to the MH. So how did fibers "transfer" from his house to the MH?
How are the fibers around Danielle?