Efforts like this are appreciated, but it’s important to not venture too far into the hall of mirrors reality these people live in. It’s obvious Charlie was killed by a gunshot because bullet fragments were found in his body by surgeons and tested by the ATF. People present at the scene heard a gunshot and it came from behind the crowd, not from Charlie’s table. People who believe something different aren’t being driven by evidence. They’re being driven by other motivations: It lets them scream for attention, it gives them an excuse to harass random people online, it lets them blame their preferred villain (guess who!) rather than the less convenient one evidence points to, it lets them pretend to be “fighting for Charlie” when they actually despised him and want to destroy his legacy, and so on. Nothing would convince them because they are not people who want to be convinced.