'The cops know what they're doing, he doesn't': Angry father speaks out after his 12-year-old son was shot dead by cops after he was spotted with BB gun in play park

The devastated father of a 12-year-old boy who was shot dead by Cleveland police when he allegedly pulled out a BB gun from his waistband has condemned the officers for their actions.

Gregory Henderson, whose son, Tamir Rice, passed away in hospital on Sunday, said the youngster had his whole life ahead of him when he was gunned down outside Cudell Recreation Center.

Wiping away tears, he said: 'Who would've thought he would go so soon? He had his whole life ahead. To be 12 years old, he doesn't know what he's doing. Police, they know what they're doing.'

He added that he was still shocked at the death of his 'superhero', whom he described as a keen basketball player who was tall for his size, polite and 'very artistic'.