 This has led to some acts of extreme violence to others, often leaving abusers with no recollection of what they have done in their drug-induced state.It has been proposed that criminal and violent acts brought on by benzodiazepine abuse may be related to lowered serotonin levels via enhanced GABAergic effects.Flunitrazepam has been implicated as the cause of one serial killer's violent rampage, triggering off extreme aggression with anterograde amnesia.