Newly released footage shows Digwa pretending to be unaware of Mr Nowak’s injuries and repeatedly accusing him of a racist attack

The 18-year-old bled to death last December after being handcuffed by officers who believed claims by his Sikh killer, 23-year-old Vickrum Digwa, that he had racially abused him.

In his final moments, Henry Nowak told police officers nine times “I can’t breathe” and four times that he had been stabbed.In response police officer dragged him across the…