Detectives in Florida have arrested a man accused of lacing heroin with elephant tranquilizers – leading to the death of two people in Eagle County back in March.

23-year-old Samuel Brunelus was arrested Tuesday following a multi-agency investigation spanning several months.

The drug, called carfentanil, was linked to the fatal overdoses of two people in the Blue Lake area of Eagle County on March 24.

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Carfentanil has also been linked to a significant number of overdose deaths in other parts of the country.

As Brunelus awaits extradition to Colorado, he's being held at the Broward County Detention Facility in Florida on a $50,000 cash bond.

He faces two counts of manslaughter, along with charges for distributing a schedule II controlled substance.