Police are urging those responsible for Baby Ru's death to come forward and "do the right thing". Photo / RNZPolice are urging those responsible for Baby Ru’s death to come forward and “do the right thing”. Photo / RNZ

Wellington district crime manager Detective Inspector Nick Pritchard. Photo / RNZ, Mark PapaliiWellington district crime manager Detective Inspector Nick Pritchard. Photo / RNZ, Mark Papalii

‘They failed him’