A woman who was convicted of murdering a mother-of-two in a frenzied knife attack has been jailed for life.
Tracy Meikle, 33, stabbed 36-year-old Lorraine Foy five times on the neck and body, in front of the victim's two teenage daughters, on 22 June 2013.
Ms Foy had gone to confront Meikle at her flat in Glasgow after being told she had head-butted a 14-year-old girl.
Meikle claimed she acted in self defence but was convicted of murder. She will serve a minimum of 15 years.
Meikle's defence QC Gordon Jackson had pleaded for leniency before sentencing and said his client had taken valium washed down with Buckfast and cider and could remember little of the attack.
"She never really denied that she was the person involved in this but doesn't know how it happened or why it happened. It was just something out of nothing," he said.
Mr Jackson added that Meikle had a history of being abused, broken relationships and drink and drugs.
But since she had sobered up in Cornton Vale she had become a pleasant and sensible young woman - which made the tragedy all the greater.
Jailing Meikle at the High Court in Edinburgh, judge Lord Jones told her he had read accounts from Ms Foy's daughters and other relatives on the impact of her death.
"It is clear that the whole family has been devastated by the utterly pointless and cruel murder," he said.
Lord Jones noted that background reports also said Meikle very much regretted what she had done but added: "None of that, however, can undo the damage you caused."
Meikle's trial at the High Court in Glasgow heard how Ms Foy went in a taxi to confront Meikle over an allegation she had head-butted a girl.
She demanded that Meikle came down from her flat in Crowlin Crescent, Cranhill, and explain why she had done this.
Meikle grabbed a black-handled knife before walking down the stairs.
She then attacked Ms Foy with the knife, plunging it into her neck and body five times.
One blow severed a main artery and another cut the jugular vein.
Ms Foy's daughter Amy Foy, 13, said that Meikle came down the stairs and the two women began to scuffle.
She added: "I shouted to my mum 'she's got a knife up her sleeve' but mum never heard me and they started fighting.
"Mum and her were fighting and she was trying to get it out and couldn't. Then she did and stabbed my mum in the neck."
The court heard that Ms Foy was unarmed. The only thing she had in her hands was a pack of cigarettes.
Ms Foy's friend, Michelle Cochrane, 41, told of how she tried to pull Meikle away saying: "She was like a wild animal stabbing into Lorraine's neck. She was just blank. It was a frenzied knife attack."
Mrs Cochrane said that she got behind Meikle and punched her a couple of times on the head and added: "She was still stabbing Lorraine. I couldn't get her off. It was like somebody with double strength."
The attack lasted just over 30 seconds before Meikle went back up to her home.
Mrs Cochrane said that her friend was lying in the middle of the road with blood coming from her neck.
She said she went over to Ms Foy and put her hand round her neck.
The witness added: "Blood was seeping my hand. I was saying to Lorraine: 'Stay awake, stay awake'.
"She looked at me with her left eye and there was a tear in it, she blinked twice and then it was as if her eyes changed colour. I knew then that I had lost her."