A California prostitute charged with killing a Google executive with an overdose of heroin aboard his yacht pleaded guilty to involuntary manslaughter and administering drugs.

A high-priced prostitute accused of abandoning a Google executive on his yacht after injecting him up with a fatal dose of heroin never meant for the man to die because he was paying her well, a defence lawyer said today.

After weeks of conflicting signals about the strength of the US economy, a big gain in the jobs market gave Wall Street reason to celebrate today.