Insane jealousy probably played a part, but I can tell you from what I've seen with my own eyes, some guys have some precondition that appears to be severely exacerbated by cannabis. I've seen a couple of guys be cogent, rational but go completely schizoid (as in hearing voices!) on just one puff of a 'spliff'. Some people go bonkers with excessive, habitual prolonged use, and Ayurvedic texts say as much.
Then on the other hand I've met with, and worked with guys who puff all day long (from waking up) and it doesn't seem to have a pronounced effect on them?? They puff enough to put a normal bloke on his back but still function???
Varying neurobiology interacts with the cannabinoids and has different effects on different people. This much is obvious.
different people have different susceptibilities and underlying suspicious/jealous/envious mind will be easier to push over the edge . Snoop is not a healthy mind either he thinks nothing of exploiting females to supply him cash , that also includes the beatdown to keep them in line (I suppose) very psychopathic