The photo of murder suspect Gabriel Christian Natale-Hjorth, 18, was shown by Italian media on Sunday.Mr Natale-Hjorth and his friend, 19-year-old Finnegan Lee Elder, were arrested on suspicion of killing police officer Mario Cerciello Rega on Friday. Rega, 35, was stabbed to death in the Prati neighbourhood of Rome. He was allegedly knifed eight times after he investigated a drug deal gone wrong involving the teen suspects.

Police have alleged that Mr Natale-Hjorth and Mr Elder, both students from San Francisco, California, "confessed to their guilt". The picture of Mr Natale-Hjorth, showing him blindfolded with his head bowed and hands restrained behind his back, was taken after their arrest.

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