A teenager confessed to beating and stabbing a 17-year-old model to death last year in north London, the Daily Mail reports.

Marc King-Bromley, 17, told police he murdered Danielle Johnson behind garages just 100 yards from a busy road where thousands of residents were passing through over a long weekend.

Johnson was beaten so badly her mother wasn't able to recognize her at the hospital.

Johnson, a hair and beauty student, died June 8 from her injuries. She had also been robbed several times before her death and a fellow student put a BB gun to her head.

Jan Johnson, Danielle's mother, said she went to police 20 times for help but she was denied any protection.

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