Knife/any murders. is it time for capital punishment for those found guilty

[VNA]

All that twaddle has been tried before. And failed

You are right it's been tried before.  It's tried and tested in Boston USA and Glasgow Scotland.  As a multi angle approach and initiative it continues to be developed.  It delivers results.

Remember Heseltine and his vow to cure the "sink estates". Failed. A ban on selling knifes, failed, since most (I imagine) just get out out of the kitchen drawer.

But hey going by that you haven't even bothered to read up on it before condeming it as useless.

Stop and search, coupled with  a deterrent, and meaningful sentencing.

Yup, feel free to keep doing the same old stuff that doesn't work.