noun, noun or participle which takes 'suru'
gas suicide; suicide by gas inhalation
Refers to intentional death by inhaling toxic gas, such as carbon monoxide or hydrogen sulfide. Often used in news reports.
ガス自殺を図ったが、一命を取り留めた。
He attempted gas suicide but survived.
最近、ガス自殺による死
Recently, deaths from gas suicide have been increasing.