A 19-year-old has admitted to causing the death of three teenagers by dangerous driving after inhaling nitrous oxide and travelling at speeds of more than 100mph, a court has heard.Thomas Johnson was behind the wheel of a BMW 3 series when the car crashed into roadside furniture and a tree, killing three passengers, on the A415 in Marcham last year.

A 19-year-old has admitted to causing the death of three teenagers by dangerous driving after inhaling nitrous oxide and travelling at speeds of more than 100mph, a court has heard.Thomas Johnson was behind the wheel of a BMW 3 series when the car crashed into roadside furniture and a tree, killing three passengers, on the A415 in Marcham last year.