The news reports said the hair was "on" the pliers, not "in" the pliers. I completely discount any reports saying the hair was "wrapped around" the pliers. How do you wrap a 1" hair around a pair of pliers?
From the above article: "...a single black-colored hair attached to a pair of pliers found in Peterson's boat..."
This source is only one of a great many which say that the hair was attached to the pliers, or that the hair was in the pliers.
This article goes on to describe how the hair and pliers were photographed, to show the way the hair was found--caught in the pliers.
According to Nancy Grace on CTV tonite, she claims the hair was tangled in the pliers. I know my hair sheds, but how do you get it "tangled" in pliers. I use them myself quite often in flower arranging & never have seen any of my hair in the needle nose pliers & I have very long hair.