A killer who hacked a dad to death in front of his sons in Glasgow park was caught with a smuggled mobile phone in his prison cell.
Angus Malavin, 37, admitted having the illicit device during a search of his cell at HMP Shotts.
The thug, caged for life over the brutal slaying of Andrew Curran pled guilty at Hamilton Sheriff Court last week.
He was handed a five month term by Sheriff Ross Macfarlane QC which will run alongside his current 18-year minimum sentence for murder.
It is the second time he has been caught with a smuggled device while in jail.
Depute fiscal Morag McLintock said: "The item was discovered during a routine search of the accused's cell."
Sheriff Macfarlane said: "I note that there is an analogous conviction here but I will imprison him for a period of five months which will run from today."
A second charge alleging Malavin had another phone was dropped by prosecutors.
The court was told his earliest date of release is in 2028.
Malavin, along with brother Zac, knifed their victim Curran, 41, in the neck and stomach as violence erupted in Maryhill Park in April 2010.
The dispute started when Curran's son urinated on a bottle of alcohol belonging to Zac Malavin.
They arranged to meet in the park, but members of both sides arrived armed.
A trial at the High Court in Glasgow saw the Malavins deny any wrongdoing and claim self-defence, but they were convicted by a jury.
They were also found guilty of assaulting Curran's friend James McGregor by striking him on the body with a sword and shooting him on the body with a crossbow to his severe injury and permanent disfigurement.
Angus was handed 18 years while younger brother Zac was jailed for a minimum of 17 years.
In December 2016, Zac was pictured posing from his cell at HMP Shotts taken on a smuggled phone and posted on social media.
