Derek Owens and Diane Potter
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Family's anger at drug deaths after inquest hears up to 20 deaths were linked

The brother and sister of a man who died after taking drugs have called for more to be done to tackle the problem.

Derek Owens and Diane Potter were speaking following an inquest into the death last year of their brother Jim.

Twenty deaths have now been linked to a new unregulated drug that was introduced in Northern Ireland last year.

Northern Ireland's senior coroner likened the deaths to "having a serial killer on the loose".