According to data obtained from the Nevada Prescription Monitoring Program by the Las Vegas Review-Journal, this past summer Paddock had been prescribed an anti-anxiety medication called Diazepam (originally marketed as Valium), side effects of which include aggressive and psychotic behavior, hostility, confusion, decreased inhibitions, and suicidal thoughts.
"If somebody has an underlying aggression problem and you sedate them with that drug, they can become aggressive," Dr. Mel Pohl of the Las Vegas Recovery Center told the paper. “It can disinhibit an underlying emotional state. … It is much like what happens when you give alcohol to some people … they become aggressive instead of going to sleep.”
Whether Diazepam is what motivated Paddock to go on a killing spree is unclear, as evidence seems to indicate that the mass shooting was meticulously planned and carefully calculated. According to Dr. Michael First of Columbia University, an expert on benzodiazepines, while drugs such as Diazepam can cause aggressive behavior, the extent to which Paddock planned his actions indicates there were deeper issues behind his decision to commit the worst mass shooting spree in American history.Read more at TheNewAmerican