Worth pointing out, our enemies are not above tarnishing the reputations of good people.
A documentary maker might have seen or documented something he wasn't supposed to.
If they start getting desperate, they will start poisoning the well. For all we know, this person documented actual child prostitution, content which might technically be included under the umbrella of "child pornography" or similar and bad actors were using the law to prevent what he documented from coming to light.
On the other hand, he could've been a low level person used for their technical skills in film making. Am curious to know what he was doing in the Philippines and whether he was working on any documentary projects that might intersect with pizza. In this case, he sounds pretty suspicious, but then again it would be easy to plant incriminating material on him or simply make shit up in the media.
What are the protocols orgs like the FBI follow for handling that kind of material (assuming good actors serving justice)? If someone stumbled on pedo activity or content somehow, how could they turn it over without bad actors implicating them in a crime like possession? I'd bet this has happened before, a good person getting convicted and thrown in prison for handling that kind of material.