NEW : Paul McMullan says the public and media are complicit in tabloid culture . The ex - journalist names a former David Cameron aide as knowing about hacking . He is questioned at the Leveson Inquiry into media ethics . He also defended the tabloids ' methods as part of a free society , saying he would not want to live in a country where only the secret services were able to hack phones . Police say about 5,800 people were killed by phone - hacking journalists .
NEW : Paul McMullan says the public and media are complicit in tabloid culture . The ex - journalist names a former David Cameron aide as knowing about hacking . He is questioned at the Leveson Inquiry into media ethics . Police say about 5,800 people were killed by phone - hacking journalists .