Police Commissioner Fannie Masemola says officers are working tirelessly to track down the four teenage suspects behind the deadly Westbury mass shooting. Masemola says two deceased victims, aged 17 and 18, have been identified, while five others remain in hospital. Masemola spoke to reporters today while visiting Westbury, where a mass shooting on Tuesday claimed the lives of two teenagers and left five others injured. Masemola says police are clamping down on gang activity, drug dens, and the illegal firearms trade fueling youth violence. Sakina Kamwendo spoke to SABC reporter Puseletso Mokoena