Those that believe they can and should kill one of these creatures "for science" must live in the capitol city of La La Land.
Mankind comes in many various shapes, sizes, colors, and some have modes of travel that is not like that must of us use.
http://www.dailymail.co.uk/news/article-2698298/Turkish-family-walks-fours-scientists-say-dont-like-four-legged-animals-ARENT-example-reverse-evolution.html
Where did you get the idea that man has always used and depended on fire and tools to survive?
It would be murder.if their DNA showed they are relic humans. (But, again, if they are relic humans it would be a violation of this country's "Scientific Integrity" regulations, per Obama's Presidential Memo of 2010 for any scientist to publish anything about the examination of the body.)
Residents of La La Land all share the same grossly erroneous beliefs that, (1) science & the federal government does not already know the DNA identity of these creature, (2) a body of one would be welcomed with opened arms by any scientist in the appropriate fields of study, (3) killing one would bring bring fame, glory and acclaim to all those who actually conspire to kill one of the creatures in a premeditated and deliberate manner and; (4) the worst that could happen to those involved would be a summons from a state game & fish enforcement officer for killing an animal for which there is no open season.
I strongly suspect that you could not find or afford an attorney who would pursue your "charges" (or claim) against the G&F agency for not telling you about the "ape man" after reading your posts on this forum.
The most voracious "pro-kill advocates" seem to be those who have never actually seen one of the creatures face-to-face, especially a young one that has not learned that some of "us" pose a serious and unjustified threat to them.