Last year, Baltimore had three mass overdose incidents in the span of three months in its Penn North neighborhood.
The incidents left dozens of people laid out on the street after accidentally overdosing on what they thought was opioids.
However, after testing from the National Institutes of Standards and Technology, analysts found, N-Methylclonazepam, a benzodiazepine that operates similarly to Xanax or Valium, laced the drugs.
