I welcome my hon. Friend to his place, and thank him for raising this awful case. The loss of a teenage boy in west London is shocking, and our thoughts—I am sure I speak for the whole House—are with his family and friends. I urge the public to support the Metropolitan police with any information that could help in their investigation, which is ongoing. Making streets safer is one of the five central missions of this Government, and this is a shocking reminder of just how important that mission is. We have an ambition to drive down this sort of violence in our communities. We do not want interventions like this, as we have had over the last few years. It is shocking to hear of this particular incident.