Why would he have to be delusional and why could it not be bipolar?
CLARIFY-I personally don't think that he is at this point, I was just using that as an example of one mental illness that can be misunderstood.
ETA: I know someone with bipolar I that had the exact same reaction to risperdal as you did. ASAMOF, pot brings on psychosis for this person.
Because unless they've updated the criteria since I was diagnosed, the only delusions in bipolar is delusions of grandeur.
Honestly, to me, he seems like he just decided it would be really neat to kill people. The fact that he is alive usually doesn't happen in these cases, so I guess authorities really get to see what the truth is now.
Marijuana has never brought on psychosis for me. A particular strong edible did once give me a seizure.
But, there are MANY different strains of marijuana that can mimic the sensations and chemical responses of any recreational drug you can think of.