CCTV has been released showing a gang of youths in Asda in the moments leading up to a fatal stabbing.

A 15-year-old boy was found guilty of murdering innocent shopper Ian Kirwan, who was knifed to death after challenging the youth for messing about in the Redditch supermarket’s toilets.

Jurors unanimously convicted the youngster on Wednesday after hearing how the 53-year-old was knifed in the heart by the youngster – then aged 14 – who was part of a masked group of youths who “terrorised” members of the public in Redditch.

Mr Kirwan, described by his wife as a “wonderful person” with “the biggest heart”, had popped to B&Q to buy a light switch before going to Asda to use a toilet.

READ MORE: Wife pays tribute to Ian Kirwan after Redditch murder verdict

READ MORE: Detective speaks following Redditch murder trial

Following the jury’s decision, Mr Justice Fraser told the teenage killer, who was not in court but attended from custody via video-link, he faces the “youth equivalent of a life sentence”.

Jurors cleared three of the other youths – two aged 14 and one 16 – of murder and manslaughter but found them guilty of violent disorder.

A fifth boy, 16, was acquitted of murder, manslaughter and violent disorder after saying he was not involved in the deadly confrontation and could not have predicted it.

The youths will be sentenced on February 15.