It went down after dark.
Sunset is around 6:15 and this plane crashed around 8:30.
MIA is not general aviation, this guy wasn't flying VFR, and you would have to kamikazee in to hit the building, it's only one story tall.
It sure sounds suspicious to me.
I misread the time, thought it went down at 5:45, not 8:45. Guess it's be dark even as far south as Miami by then.