Almost 81,000 people lost their lives to drugs in 2020 making it the highest number of overdose deaths in a year in the United States. Senior investigative reporter Leslie Marcus shares there is a new dangerous drug on the block fueling this crisis named Isotonitazene or Iso, it’s a synthetic opioid that is 1,000 times stronger than morphine. Meet April who lost her brother to an Isotonitazene overdose.