IMO & just the feeling I've had from the get-go.
This was a pre-meditated, Holly-specific, planned, targeted abduction. By now, LE has a short (secret) list of who took Holly. Whoever did this, knew her, knew her family, and vice-versa. IMO, this person was not a stranger/acquaintance.
My feeling is we won't be hearing from the family anytime soon. Holly's Dad perhaps said too much publicly early on and the FBI has put a kabosh on info & media. "Leave the family alone." Holly's Dad said they believe it's someone who knew the family's schedule.
It's likely Holly's brother and those in her close social circle have helped investigators narrow this down a great deal. The brother certainly provided a description of the individual he saw with Holly. LE has description of height, approx weight, gender, and an age range - but has not released this info to the public - likely because they don't need to. LE could very well be watching/observing a short-list of suspects. LE could also know who on the short-list has been "MIA". Finally, blood, hair, skin, and fingerprint forensic results are likely back by now. Expedited processing can be 24 hours.
Let's hope everything comes together in Holly's favor today.
Still praying for Holly & her family, LE & all volunteers & searchers. What a wonderful, dedicated, giving community.