It's been the longest murder trial in the history of the state.
Aaron Brady has been found guilty of the Capital Murder of Detective Garda Adrian Donohoe in Co Louth in January 2013.
The 41 year old detective was shot dead during a robbery at the Credit Union in Lordship.
On Monday, Brady was found Guilty of taking part in an armed robbery at the premises.
Eleven of the twelve jurors believed he was the one who shot Detective Donohoe from close range during the robbery.
On a cold and wet Friday night in January 2013, he was assigned to escort a cash convoy to Dundalk for safe deposit.
At 9.29pm, Aaron Brady and three other masked men jumped a wall at the back of the credit union and ran towards the convoy.
Detective Donohoe stepped out of his unmarked Garda car to see what was going on, and without hesitation, Brady shot him in the face from close range.
The local detective didn't even have time to draw his weapon. He died instantly.
Brady lied about his whereabouts when he was stopped the following day. He later claimed he was engaged in illegal diesel laundering at the time of the shooting.
But the jurors didn't believe him. On Monday, they convicted him of robbery, and today he was found guilty of the capital murder of Detective Donohoe after 20 hours of jury deliberations.