I interpreted that as the guy didn't know what the reason was yet.
I initially thought the HOA was implying physical threats towards their residents with the images, but on second viewing it looks like the HOA board originally received those images in their inbox. (If you pause and zoom in you'll see those images came from anonymous senders to the HOA.) Maybe the HOA is claiming one of the residents threatened the HOA board with those images?
This is what it's like when someone on tv says something vaguely reminiscent to "Hey Siri" and my HomePod goes "Uh huh?"