London Bridge killer was wearing an ELECTRONIC TAG after being released from jail a year ago...

https://www.dailymail.co.uk/news/art...es-reveal.html

London Bridge 'terror attack': Video shows incident - live...

https://www.cnn.com/uk/live-news/lon...ntl/index.html

From article...

UK Prime Minister Boris Johnson said that it is a “mistake” to allow violent criminals out of prison early.