after hearing the presser today I agree with you.. they are looking for a combination of factors and with hope they are getting a lot of tips in right now on the following:
1-someone dressed in camo on wednesday
2-someone with atv in the area acting strange around that day
3-someone who had the day off or multiple days off or didn't show up for works or appointments
4-someone who seems anxious, etc
5-someone who was obsessively washing a car or atv or tried to sell them in in past few days
I would personally add to that someone who has unexplained cuts or bruises
Also, someone saying he was out hunting that day might work to his disadvantage, considering that the kidnapper was reported to be wearing camouflage.