A 41-year-old man in Britain faces jail after pleading guilty to trying to blackmail formula one boss Bernie Ecclestone.
The Telegraph reported that the man, who works as a dental technician, phoned the 81-year-old billionaire several times, claiming he had kidnapped his daughter Tamara.
Ecclestone called the police after the man demanded 200,000 British pounds for her release.
"Amateurish it might have been, but it was a targeted offence," said the prosecutor. "The family is vulnerable and Mr Ecclestone took it seriously."
The Southwark Crown Court judge reportedly said the offence will lead "inevitably ... to a significant and substantial prison sentence".
The man will be sentenced in September.