It’s as though someone watched an action movie and thought, what if we get rid of the need to cut the comms in the building itself, and if we chose a time and day when nobody would show up:

https://m.youtube.com/watch?v=xLcHPsWK5xg

https://m.youtube.com/watch?v=jrA-1cG_wq4

This is a scenario that is in like pretty much every action heist movie ever. Except the movies have super-dramatic bad guys who blow their own cover to take credit for irrational reasons.

Based on what we are seeing about comms and 911, the “true crime” might have happened far from the scene of this blast.