On arriving at the bungalow where the man was staying, the Naigaon police found a note on the door that read "Carbon monoxide ...

The deceased had sealed the windows of the house, assisted by a carpenter, to prevent the gas from escaping accidentally.

"The gas chamber training teaches Marines how to employ gas masks in toxic environments, and to instill confidence with their gear during CBRN training. Training in the gas chamber is essential ...

"The idea that the State was planning to strap this tiny, frail, dying old man to a chair and force him to breathe toxic gas into his failing ... nitrogen through a mask that displaces oxygen ...