I seriously doubt he did that because he smoked marijuana. Then again, the old ‘Reefer Madness’ movie did depict people going stark raving mad from a few puffs. This post said he
The guy died too. That sounds like something actually dangerous, a health problem, or both.
Typycal of a methamphetamine overdose.
Apparently, sewer gas can cause this behavior. It is an alternative explanation to “bath salts”.
“Hydrogen sulfide is a deadly broad-spectrum poison. It is lethal to humans with one or two breaths in concentrations of 1 part per thousand. In other words, if the air you breathe is 99.9% clean and 0.1% hydrogen sulfide then you’re going to be dead after one or two breaths. It is also a water-soluble gas and will contaminate water. It is a heavier-than-air gas so it will tend to seek out low-lying areas such as rivers, lakes, seas, oceans, valleys, ravines, ditches, quays, bays, gorges, canyons, basements, underground facilities, etc. It is also highly flammable and is reactive with numerous substances, including (but not limited to) copper, rusty iron/steel, nitric acid, and sodium hydroxide.”
Source:
https://jumpingjackflashhypothesis.blogspot.com/2012/02/jumping-jack-flash-hypothesis-its-gas.html