Ah that's a different one, the one I was thinking of was the murder of Agnes Sina-Inakoju https://www.theguardian.com/uk/2011/apr/12/gang-members-teenage-girls-murderOhh could be the incident in Brum - Burger bar boys vs the Johnson crew, it was a hair salon but I guess the gang name is takeaway related, two girls who weren't the targets were sadly killed, one of them 17.
Murder of Charlene Ellis and Letisha Shakespeare - Wikipedia
en.wikipedia.org
Although it does go to show that these cases do result in very long sentences.