He lives in B.C. Canada, grew up on Vancouver Island. He's a big game guide, name is Steve Isdahl. His channel started out with him just telling stories of hunting adventures, bear encounters, etc. Some began hounding him to see whether he's had any Sasquatch sightings. He eventually answered with a "yes" and was bombarded with requests to tell the story. He also develops hunting/fishing apps to help people become better at field sports (Blacktail Hunter, by Howtohunt Outdoors, Ltd., and others).
He had a face to face encounter as a teen, kept it to himself until he'd had a conversation with his grandfather. His grandfather had an encounter in his younger years, but never told anyone before talking with Steve. Steve's platform on the subject is that it's not right for people to feel they can't speak of what they've seen, for fear of ridicule... and his channel has evolved into more of an "email me your story and I'll share it with others who will listen without ridicule." His channel has snowballed since he's taken on this topic.
He's apparently been contacted by folks who have been negatively affected by their interest/research into the whole Sasquatch topic, and, fueled by his admiration for his late grandfather's fear of ridicule... is now laying the groundwork for spearheading against those who would bully people, to stop doing it, and to force the hand of officials who cover up happenings, rather than letting the public know the truth concerning such sightings/encounters. It's been a very interesting path to watch... from his days of simply telling hunting stories, to what's happening currently.
My point in sharing the video is, the claim that there is additional video footage from the Patterson/Gimlin film which has not been made public. Apparently that of "Patty" recovering a dead infant (of her's) after it had been shot. You never know what tales people will have until you bring a topic up.