attack in Moscow was likely organized and funded by Putin. This matches his rise to power where he faked Chechnyan terrorist attacks to "prove" only he could keep his people safe.
Why now?
To ease the Russian public into accepting and even *wanting* the next global conflict.
I think the mass shooting in Moscow was a false flag. Putin's rise to power used the exact same strategy but with bombs. His goal? Placate his people into accepting WW3.