A thread with this wackadoodle crap in it has already been locked.
If you think that Sandyhook was a conspiracy, PROVE IT. Otherwise, you are wasting bandwidth.
They're working on proving it. What do you expect them to do without subpoena power and the investigative resources of the state?
With that said, I have now watched the video. I think the video creator is reaching on some of his points.
For example, he makes a point that no children are visible outside the school. He spends some time on this point. But, I noticed pretty easily that some of his news footage to support his point includes road and lots crammed with vehicles. In another, police tape is visible. If the children were mustered outside the school, I'm betting they were long gone home before the footage was shot, and so wouldn't be there anyway. If he wants to make this point, he needs to tie the footage and photos that lack kids to the relatively narrow time frame the kids would be mustered outside the school.
I think his strongest points are the inconsistencies in the news reports, the little girl who did but then didn't get shot, and the obviously fake grieving parent.
Some of his other stuff would just have to be verified on other channels, being careful to avoid circular citations. (Circular citation is where, for example, newspaper x makes a big deal out of something and cites magazine y as its source, and magazine y cites as its source journal z, and journal z cites newspaper x as its source.) So, if you're serious about trying to track something down, like his comment that some news interviewees are members of a particular actor association, you would follow the citations and make sure it wasn't just a buncha sources all citing each other.
I'm not convinced, but I'm suspicious
something is going on.