Kenichi Philips was shot dead as he sat in a parked car in Ladywood in March.
Concern Over Free Running In West Midlands
Police in the West Midlands have told Heart children aged as young as 12 are taking part in a dangerous sport called free running.
It's where people climb on top of buildings and jump between them.
We're told it's happening in Shrewsbury - and officers say online videos are glamourising it.
Superintendent Sue Thomas from West Mercia Police says it's up to parents to talk to their children.
She said: "I think the clear message has to be not just to those young people but urging parents to talk to their children about the danger of this activity.
"It's careless and it's thoughtless in terms of the danger it could cause as well."
Jamaican born Douane Brown will spend at least 21 years in jail for the killing.
A man's in hospital after being stabbed in Birmingham.
Ukip leadership candidate Bill Etheridge has withdrawn from the contest and called on rivals to back current deputy leader Paul Nuttall.
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