During this period, people were murdered in South Africa. “Arguments, misunderstandings and incidents of road rage and provocations are the cause of murders in the country,” he said. The minister revealed that vigilantism has cost people their lives, people have been killed while committing theft. Hot, humid weather is known to be associated with low mood, associated with increased aggression and violence. High temperatures can cause the brain to divert its resources to other parts. Dowden and Andrews 2000 integrated a series of evaluations of interventions aimed at reducing violence and tests of effect sizes. Offending behaviors targeted included general violence and sexual and domestic assault. Most of the 70 studies included in this review focused primarily on working with adults. Marijuana intoxication leads to panic reactions and paranoid feelings, the symptoms of which lead to violence, 49 The feeling of fear, loss of control and panic is associated with violence, 4, 54, 55 The use of marijuana Marijuana also increases heart rate, which may be associated with violent behavior, 34, 47, 56, 57.