Deranged killer 'was hatching plans for much bigger attack'
Garda killer Adrian Crevan Mackin was planning a much bigger attack that was foiled by the intervention of Garda Tony Golden, investigators believe.
A psychologist had assessed Crevan Mackin as "extremely dangerous" and likely to pose a serious threat to others, particularly his partner Siobhan Phillips.
It is understood that a report on the 24-year-old, who was on bail for membership of a dissident terrorist organisation, was compiled at the request of social services in Northern Ireland.
As revealed yesterday, the deranged thug had threatened the lives of two female social workers in Northern Ireland who were investigating him for domestic abuse against his ex-partner.
As a result of the incident, which was being investigated by the PSNI, the authorities in Northern Ireland asked a psychologist in the UK to review the extensive file they held on him and give them an assessment.
"The report assessed him as being extremely dangerous with the capacity for extreme violence including murder," an informed source said.
The same source also claimed the alarming report had been sent to the PSNI but its contents were not known to the gardai south of the border where Crevan Mackin had moved to live with Ms Phillips.
Meanwhile, it also emerged last night that gardai recovered a second firearm and a "very large quantity" of ammunition in searches.
Sources revealed that the gun was found with the bullets in Crevan Mackin's car, along with a number of cans filled with petrol.
A second quantity of ammunition was found in the house in Omeath where he shot his partner and Garda Golden before taking his own life.
The dissident republican suspect was armed with a high-powered Glock automatic pistol.
Investigators believe Crevan Mackin would have shot anyone else who entered the house on Sunday evening.
"The second handgun was a working firearm and was found with a very large quantity of ammunition in the car and cans of petrol... it is clear that Crevan Mackin was planning a much bigger attack last Sunday evening.
"As the background to this horrific incident is being unravelled it is becoming clear that Crevan Mackin was intent on murder and may also have been contemplating attacking Siobhan's family.
"The picture that is emerging is of a completely out of control, extremely violent individual.
"There will be questions to be asked in coming days and weeks as to why more information was not sent to the Garda authorities because it may have changed the way gardai approached Crevan Mackin," the source added.
Crevan Mackin, who shot his partner Ms Phillips several times leaving her critically injured, had been involved in reactivating handguns which he was supplying to criminal gangs and terrorists.
He had been ordering deactivated guns online from firms in the US which he received by post.
The sale of such weapons is legal once the operating parts and firing mechanisms are removed.
Separately, he was also ordering gun parts online which he then used to reactivate the replicas as lethal weapons.
It was still unclear last night if the two weapons seized by gardai had been reactivated in the same way.
Crevan Mackin was already well known to gardai and the PSNI for his involvement in a break-away faction of the Real IRA and had been spotted regularly in the company of "major players" in the various paramilitary gangs.
But a source said that Crevan Mackin was not trusted by the other IRA factions and had been thrown out of a number of them.
"He was known as a pure madman who had some pretty depraved sexual preferences, which is why he went from one gang to the other because none of them wanted him," the source said.
Yesterday, gardai were still searching the house where the murder-suicide took place and sources say this may continue for some days.
Ballistics experts have been examining the weapons recovered in an attempt to discover if they had been used in the past, and detectives are trying to trace the source of the large amount of ammunition.
In a separate development. it is understood that up to 40 extra officers are to be seconded to Dundalk from units in Dublin to beef up the local units, which have been depleted in recent years.