An armed robber who targeted six banks across London has been convicted.
The 45-year-old was found guilty at Kingston Crown Court on Wednesday (July 8), according to a Met Police statement.
John Monaghan, 54, of Granville Road, Kilburn, pleaded guilty to his involvement in three of the robberies.
Paul Wiltshire, 47, of no fixed address, also pleaded guilty to his involvement in one robbery.
Byrne took part in all of the offences, police said, threatening bank employees with a handgun while demanding they hand over cash.
Monaghan and/or Wiltshire acted as his look-outs, watching the exits, officers added.
An investigation named ‘Operation Buzzsaw’ was launched by detectives who identified Byrne and others as suspects in the series of robberies.
On October 8 last year, detectives supported by firearms officers arrested Byrne and Wiltshire as they targeted an HSBC branch in Shepherd's Bush Green.
Both Byrne and Wiltshire were found to be in possession of an imitation firearm, two knives and a rucksack containing £4,500, police said.
Monaghan was later identified and arrested.
Speaking after the court hearing, Detective Inspector Scott Hartley, from the Met’s Flying Squad, said: “This group of armed robbers committed extremely violent offences, causing utter terror to bank staff and customers who were suddenly faced with armed men shouting threats and demanding cash.
“Operation Buzzsaw was a lengthy operation to identify, target and arrest Byrne and his associates, who showed no signs of slowing down their offending.
“As a result of the diligent and painstaking investigation by the Flying Squad, these criminals now face considerable prison sentences.”
All three of the men will be sentenced at Kingston Crown Court on Thursday July 16.