One of PC Andrew Harper's killers boasted "I'm a real man" as he was arrested by a dozen police officers outside a pub when he was just 15.
Henry Long's family and friends shout abuse as police arrest the teenager in footage that was posted on Facebook by his dad Carl in April 2017.
It was recorded two years before getaway driver Long drove the car that dragged PC Harper to his death as the Thames Valley officer and a colleague investigated a theft of a quad bike.
Long, who last week was jailed for 16 years for manslaughter, boasts in the video: “Look how many cops it takes to do me boys.
Read more on mirror.co.uk