The decision to publicly identify the Birmingham murderer is putting the issue in the spotlight.
Leo Ross is believed to be the youngest victim of knife crime in the West Midlands.
Det Insp Joe Davenport says the killer attacked his victims in Birmingham for "violence sake".
Leo Ross died after being stabbed on 21 January last year.
Chief Constable Craig Guildford was speaking at the opening of a new police station in Dudley.
Sekou Doucoure, 16, who had played for Nottingham Forest, was fatally stabbed in Birmingham in 2022.
Family day launches the Leo's Legacy Foundation in memory of boy who was stabbed to death in January.
Officers announce a drop in knife crime after work to arrest offenders and educate young people.
Ishmael Farquharson is accused of multiple offences following the death of 16-year-old Sekou Doucoure.
