Drop "it" like a bad habit... I think some states have even outlawed killing something they cant even prove exists, lol. But for the greater of science, man and "what if?" I think killing one would be acceptable. When I was a kid I used to be fascinated by the idea of a sasquatch (mainly because I was petrified of Andre "The Giant" dressed up like Bigfoot in all those Six Million Dollar Man episodes, lmao) and I believe deep down inside we want to believe that a "missing link" exists. But I am completely content with our Creator's "recipe" for how human life got here.
But then again if you have ever seen the ancient forests of the North West you can kinda believe something could wander around there for eons without discovery!

RA