Pete and Katie Taylor DNA samples have been taken from the van as well as fingerprint and fibre samples.
Gardaí are hopeful DNA samples taken from the getaway vehicle used in the fatal Bray gun attack may be able to identify the gunman.
Officers are in the process of sending DNA swabs to Forensic Science Ireland, where scientists will generate a profile and run it through the DNA Database to see if there is a match.
Gardaí also say they're examining a “mountain” of CCTV footage, including from where the getaway van was abandoned and from the area surrounding Bray Boxing Club.
Fifty-year-old father of three Bobby Messett almost instantly was killed when a gunman, entered a fitness session at the gym at around 6.55am on Tuesday, and opened fire.
Between 15 and 20 people were attending the class at the time.
Messett has been described by gardaí as a “totally innocent person, in the wrong place at the wrong time.”
Gym trainer, boxing coach Pete Taylor, was shot in the torso, while a second participant, Ian Britton, was shot three times in his right leg.
Mr Taylor is the father of Irish Olympic Boxing champion Katie Taylor. Gardai are investigating if the gunman was targeting Mr Taylor specifically.
DNA samples have been taken from the van as well as fingerprint and fibre samples.
“We’d hope there is DNA in there,” a source told Breakingnews.ie. “We’d have them swabbed and generated in the next few days.”
The sample's will be run against existing DNA profiles of people, and the crime index, which holds unknown profiles taken from crime scenes.
