If we are to believe the shooter's manifesto; he heavily used Reddit and was a relatively new user of 4chan, which he initially browsed due to boredom when he heard about it having a board about firearms (something he obsessively posted about on Reddit) called '/k/' and a board about the outdoors called '/out/.' He then found a board about politics called '/pol/' which lead him to discover full fledged hardcore neo-nazi websites which promote violence, sites which he lists. These being; "The Daily Stormer," "World Truth Videos," and "Daily Archives." After this point he says he started agreeing with these distorted world views.
I believe the concern is that by focusing only on the platforms he used to "stream, promote, or plan the event" the probe is effectively neutered and won't lead to real change. It appears that the three neo-nazi websites he discovered through messages on the /pol/ board of 4chan are the most culpable in his radicalization, but these three key sites that hold this culpability are not mentioned as being targets of the probe. Also in his manifesto the 8chan link appears to go to a real working website called 8chan, but it is not the url of the actual 8chan website according to a quick google search.
This leads to even more questions too, like why did they not mention if they would also probe police conduct when they allowed him to have firearms. Despite him making a shooting threat that was investigated prior?
I believe the concern is that by focusing only on the platforms he used to "stream, promote, or plan the event" the probe is effectively neutered and won't lead to real change. It appears that the three neo-nazi websites he discovered through messages on the /pol/ board of 4chan are the most culpable in his radicalization, but these three key sites that hold this culpability are not mentioned as being targets of the probe. Also in his manifesto the 8chan link appears to go to a real working website called 8chan, but it is not the url of the actual 8chan website according to a quick google search.
This leads to even more questions too, like why did they not mention if they would also probe police conduct when they allowed him to have firearms. Despite him making a shooting threat that was investigated prior?