I don't know if it's just the lighting, but his pupils look quite dialated. I'm wondering if this is a case of stimulant psychosis, or good old regular psychosis. Either way, I don't get the aside in the story to point out his stupid fucking tattoo.
Edit: Now that I think about it, isn't he at the age that schizophrenia tends to manifest?
I'm just waiting for someone to claim its because cannabis can potentially exacerbate underlying mental health issues. It's very clear that was not the intention of the article assuming the authors had even known about such a thing in the first place.