'It was just a battle all the time'
Jack Brennan, from west Belfast, was just 23 when he died of a suspected drugs overdose. His mother says he was a thoughtful and loving brother and son.
She is urging the Northern Ireland Executive to create a service that treats mental health issues alongside drug and alcohol addiction.
Currently the services run separately and you must be drug-free before being assessed for a mental health issue.
If you have been affected by any of the issues in this article, there are a list of organisations that may be able to help at BBC Action Line.
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