‘Serial Killer’ drug strikes UK after causing deadly addiction epidemic in US

‘The National Crime Agency (NCA) has warned that a new drug, known by the street names ‘Serial Killer’ or ‘Drop Dead,’ is being blamed for a series of fatalities in Britain.
The drug, which is a mix of heroin with fentanyl or its chemical derivative carfentanil, an opioid used by vets to tranquilize elephants, is reportedly 100 times more potent than street heroin.
It has been responsible for some 3,050 deaths amongst heroin addicts in the US and has now apparently made its way to the UK.’
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