evidence: Fentanyl is a deadly, synthetic opioid, 50 times more powerful than heroin. Americans are dying from it at such an alarming rate, that the US has approved the sale of naloxone - an overdose-reversing drug - without a prescription. But fentanyl's trail of destruction begins further south. [...] Last year 70,000 Americans died of a drug overdose associated with a synthetic opioid like fentanyl. April Spring Kelly lives with immense regret - one of the fentanyl pills she trafficked was linked to a baby's death. [...] In 2021, 814 people died of a fentanyl-related death in the city's county - that's more than 15 fatal overdoses a week in a population of just over three million people.