A VICIOUS killer stabbed a disabled man to death in an act of mindless violence.
Jonathan Kean had never even met Martin Broadley before he brutally murdered him in an Ayr street.
And this week the High Court in Glasgow heard how the thug even bragged to a group of youths that he’d murdered the 48-year-old as he fled the scene.
Kean, 23, was jailed for life after he admitted murdering Mr Broadley in May this year.
Judge Lord Turnbull ordered that he serve at least 12 years before he can apply for parole.
Lord Turnbull said: “You have pleaded guilty to a despicable act of violence perpetrated on an innocent and vulnerable man who was a complete stranger to you and for no apparent reason.”
Kean, of George Street, Ayr, featured on a BBC TV documentary Boys Behind Bars, which was filmed at Polmont young offenders’ institution, where he served time for assault.
After stabbing his victim four times he shouted to a group of youths: “I'm Jocky, I've been on the telly. I've just murdered some guy.”
Mr Broadley, who walked with the aid of a crutch, was last seen on CCTV footage around 10pm as he headed towards James Street, Ayr, with a carryout. The court was told that people nearby heard the sound of two men arguing around 11pm.
Prosecutor Ashley Edwards said: “A woman driver returning home saw Mr Broadley lying on the roadway with the accused lying over him.
“She thought it was two drunks. By the time she put her car away the accused had ran away.”
The court was told that as he fled the scene, Kean admitted the murder to at least three groups of people he met.
Mr Broadley was taken to Ayr Hospital where he died a short time later.
Kean’s DNA was found on the handle of the knife which he left at the scene and on a bottle of cider which Mr Broadley was carrying.
When interviewed by police, Kean denied murder and claimed that Mr Broadley had hit him on the ear with his walking stick.
Defence Advocate Lorenzo Alonzi said that his client had a serious drug problem which began with him smoking cannabis aged 11.
He added that at the time of the offence Kean, who has a number of convictions for violence and possession of a knife, was taking 50 diazepam tablets a day combined 50ml of methadone and cannabis. On the night of the murder he was also drinking.