In addition, attention deficit hyperactivity disorder often leads to problems controlling emotions. Many people with adult ADHD are quick to explode over minor issues. Often, adults with ADHD feel as if they have absolutely no control over their emotions. Many times, their anger fades as quickly as it flared, long before the people who dealt with the outburst have gotten over the incident (ie: Trayvon Martin).
4% of the population are diagnosed with adult ADHD. It is an indicator of a troubled individual with behavioral issues, someone who shouldn't have a gun. Zimmerman probably got this diagnosis as a result of one of the unfortunate incidents in his background. And people should also realize that medications that may be prescribed do not cure disorders, they are an attempt to manage symptoms. Additionally, many times the cure is worse than the disease.
Zimmerman was taking Adderall, often called prescription speed. It has a full slate of physical and mental side effects comparable to methyl amphetamine and cocaine. And one of them is clearly aggression! It's one of the great myths and true hypocrisies of American society, aided by drug war propaganda, that a little marijuana is dangerous while very dangerous prescription drugs are not. My son smoked marijuana as a teenager and it made him very non-aggressive. That is effect it has on most people.
So marijuana does not make people aggressive and people who believe it does have never touched it and are informed by "Reefer Madness." But speed, on the other hand, sure does make people very aggressive. Anyone but a moron knows that. Big Pharma in bed with the psychiatric establishment will do anything to make money regardless of the consequences to individuals and society. Anyone but a moron knows that too.