The jury in the trial of a Dublin man charged with murdering a 33-year-old four years ago has been hearing technical evidence about mobile phone data.
Dubliner John Carroll died on February 18, 2009, after being shot a number of times as he socialised in a city pub.
Christopher Zambra (aged 38) of Galtymore Road, Drimnagh has pleaded not guilty to murdering the Charlemont Street native. It is not alleged that he shot Mr Carroll himself, but that he organised the killing in Grumpy Jacks pub in The Coombe.
The Central Criminal Court jury has already viewed CCTV footage of the shooting, which showed a man in a helmet enter the pub around 9.30pm and immediately open fire.
The trial has also heard the case centres on the evidence of an accomplice, who has now been granted a form of immunity.
The jury today heard from a number of Gardaí, who spent the days and weeks following the killing tracking down mobile phone records for a number of suspects.
The trial before Mr Justice Patrick McCarthy and a jury of eight women and four men is expected to last between four and six weeks.