From the doorbell video, it looked to me like it was on fire while it was falling.
bet that the CVR is a joy to listen too...yeesh.
The landing lights were on. NO fire.
Same impression.
Videos that I’ve seen suggest some kind of explosion and aircraft going down on fire.
Collision of some sort. Drone perhaps.
Another possibility that I’ve not heard mentioned is an on board explosion or fire.
It was an air ambulance. Possible oxygen leak related fire-explosion?
On that video, something seems to have caught the people’s attention before the sound of the crash into the ground.