Angel dust has been around forever, it's PCP, horse tranquilizer, not a new designer drug.
Psychedelic drugs are the most toxin free, try and find someone who died from any of them.
Most of the few cases are people who the CIA experimented on, massively overdosed them causing them to commit suicide.
At the risk of redundancy, the good old legal drug alcohol kills more people that all the other drugs put together.