From a statistical standpoint, the Bigfoot connection to this topic is not to be given much credence. However, from an individual case standpoint, there are a few missing persons cases that are worth considering.
In regard to a Bigfoot kidnapping a person, there are some Native American accounts and surely there would be a few bad seeds out there in the Bigfoot population, just as with with the human population. None of this evidence is nearly conclusive or should be cause for much concern, given the large body of evidence suggesting these primates are benign.
Strange Disappearances Unveiled - CanAm Missing... by debunkerbuster
MAKE THE DEPARTMENT OF THE INTERIOR ACCOUNTABLE FOR PERSONS MISSING IN OUR NATIONAL PARKS & FORESTS: http://www.thepetitionsite.com/takeaction/910/113/575/
*NEW* STRANGE CASES OF MISSING PEOPLE 411 (2015): http://undebunkingbigfoot.blogspot.com/2015/04/new-strange-cases-of-missing-people-411.html