Schoolboy, 15, stabbed to death in gang fight 'over Facebook comments' as four teenagers are arrested on suspicion of murder

A 15-year-old boy was stabbed to death in a park after an argument which 'started on Facebook' escalated. Hassan Mahmood died after being knifed in a park in South Yardley, Birmingham, last night following an argument between two groups of youths. Police are questioning four teenagers on suspicion of murder following the killing. Two 16-year-olds, a 15-year-old and a 17-year-old are in custody, West Midlands Police said.

http://www.dailymail.co.uk/news/article-2365211/15-year-old-schoolboy-stabbed-death-teenagers-held-suspicion-murder.html