Twice as many homicides as average month in last 4 weeks

In the last four weeks there's been up to twice as many killings as an average month. Police say there's no need for alarm yet but they'll be closely watching whether the the increase in continues. Over the weekend two teenagers were arrested in connection to a fatal shooting in Grey Lynn. One's been charged with murder, the other as an accessory after the fact. But as Assistant police commisioner Sam Hoyle explained to Lisa Owen there's almost a dozen open cases.