A vulnerable 20-year-old man who died through suicide in Hydebank Wood Young Offenders Centre was failed by the prison authorities and health service, the Coroners Court has found.
West Belfast man Joseph Rainey was suicidal when he was remanded in custody in April 2013.
An inquest has found that more could have been done to prevent his death.
Coroner Paddy McGurgan said he will contact the Justice Minister about the prison service failings.
Joseph Rainey attempted suicide when he was 20-years-old. He struggled with mental health problems and found himself in and out of Hydebank Young Offenders Centre.
On Friday, a coroners court found that failings by both the prison service and South Eastern Health and Social Care Trust contributed to his death.
Family members cried as the jury read their verdict. They say drugs contributed to his early death.
The jury found that the Prison Service had failed to adequately train prison staff in suicide and self harm prevention.
The service had also failed to follow policies for dealing with vulnerable offenders and did not act upon recommendations and concerns raised by the Prison Ombudsman in previous reports.