Investigating the Past
Jennifer Harbinson's father was murdered by an IRA bomb.
She has waited three decades to find out who did it, and why.
There are 3,267 other families have lived with similar questions about how and why their loved ones were murdered.
For the past two years, Kevin Connolly, the BBC's Ireland Correspondent, has been given exclusive access to the work of the Historical Enquiries Team - set up to review all of these deaths.
Costing the Truth
Eugene Reavey has spent three decades searching for the truth about the murder of his brothers.
He has put his trust in one man to give him the answers.
That man is Dave Cox, one of the UK's most experienced policemen, and head of the Historical Enquiries Team - tasked with looking at all 3,268 deaths during the Troubles.
The BBC's Ireland Correspondent, Kevin Connolly, has had exclusive access to the team and to the families they're working with.