It would have killed the other dogs. Dogs are much more sensitive than humans. They are on the ground. They lick their paws etc etc etc....
And why wasn't their home evacuated? They even have two homes on the property. And why haven't other people in Santa Fe died from such an unscrupulous practice?
Insecticide inhalation is not like cyanide gas inhalation. Fumigants get in the wood, but the insects die from ingesting the wood.
When was the last time people in the US suddenly died from inhaling household pesticide fumes (not ingestion and not industrial fumes)? Much less a wealthy actor living in a mansion, who was an animal lover and could afford a safe, reliable pest control company?
I do my own pest control and order from a professional site. (I use strong chemicals) Inhalation usually results in ringing of the ears and/or mild dizziness. I'm terrified of roaches.....I've had skin injuries from working in 103 degree heat. (Similar to sunburn)
Below is a list of toxic gases that must be stored under continuous ventilation either in a fume hood or ventilated gas cabinet.
scs.illinois.edu