There actually are LSD analogues (the 'sunshine acid' is hypothesized to have been ALD-52). But neither they nor good old LSD-25 do this to you on their own. I've seen people suffer psychotic breaks, but never any growling cannibalism as the result of a bad tryptamine trip.
What I find strange is the noise being made now about "bath salts" MDPV being behind this, as if there was a shred of evidence to support such a conclusion - there isn't any, aside from some unfounded assertions of authorities who belie ignorance with every statement.
Don't get me wrong, MDPV is nasty, NASTY stuff, but they're grasping at straws, and seemingly using a horrific and unexplained tragedy to bolster outrage against a substance they wish to see banned more strictly. Reefer madness indeed.
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edit: just in case I didn't state this clearly, consuming bath salts is a bad fucking idea.
Regarding the last bit, consider LSD: taking that is far less bad an idea because LSD is a thoroughly researched substance not shown to inflict long-term damage to the body or psyche when used properly and mindfully.
Bath salts? Whitefoxsniper is correct, except these products tend not to contain any inactive ingredients or hygienic products. The chemicals (the 'designer drugs') found in these form a class collectively known as Research Chemicals. They are generally untested for their biological effects regarding dosage or toxicity. Ingesting such a substance is the equivalent of playing Russian Roulette. You might have a splendid time, or you might die of cardiac arrest after being stalked for an hour and a half by an apparition you believe is an evil spirit. There IS no taking these things properly and mindfully, it's just an unwise chance to take.
That said, there's still no evidence about any drugs in the attacker's system, beyond speculation fueled in turn by misinformation. What we have, being repeated by journalists who simply copypasta one another, is the opposite of educated guesswork. Reudh's hypotheses are still far more likely as far as pharmacologic causes go. Or possibly, the cause was a completely novel substance, or no substance at all.
As far as synthetic cannabis goes, aside from the panic attacks and catatonia and despair, that garbage has caused
heart attacks and
seizures in healthy people. In thousands of years of use not a single death has been attributed to THC, but the
openly sold substitutes have played a role in morbid outcomes within a few years of popularity. It's not the same as weed chemically and the differences in total effect are profound.
The many drugs found in substitute weed samples are ALL research chemicals with NO established safety profiles, and their creator has thoroughly denounced their consumption. The fact that cannabis is benign does not mean that a facsimile is safe, even while one has to be pretty unsound in the first place to ingest a strange substance one knows nothing about. Part of the problem is learning one was lied to about the dangers of certain drugs, giving other more dangerous substances a false appraisal of the threat they pose.
The DEA is probably going to schedule more of the synthetic stuff soon, but safety can have little bearing on legality outside of perception, happenstance, and public demand - that alcohol and tobacco are sold quite profitably should demonstrate this, and it should be sobering that the War on Drugs has simply resulted in the creation of far worse drugs that are growing to such a number where any dream of regulating them individually will be unreachable. Pun acknowledged.