[Pentagon Leatherneck]

I dunno. I still can’t get “explosion” from oily rags, gunpowder, primers, loaded rounds, etc. I could understand fire, but not explosion. Unless there was something in the room that I don’t normally keep.

TC

[E. Pluribus Unum]

I could understand fire, but not explosion.

The key is the airtight room. We know it was airtight because the homeowner felt pressure when he tried to open the door.

The explosion is because the pressure kept building up until it reached the breaking point of the container (the airtight room).

This would not have happened in a room with normal ventilation.

[Gandalf_The_Gray]

I dunno. I still can’t get “explosion” from oily rags, gunpowder, primers, loaded rounds, etc. I could understand fire, but not explosion. Unless there was something in the room that I don’t normally keep.

Solvents evaporating, rags ignite, a small fire ensues. The door is opened, more oxygen is allowed into the room, a flash-over occurs. Not an explosion as such but close enough to a "low explosive" so as not to matter. A flash fire would also explain how the wife burned her face and hands.

Regards,
GtG