PC Harwood's lawyer says he offered to resign after the inquest ruling, and again after the criminal trial "because he felt it was the right thing to do".
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Even the help of rain delays could not save England's desperate attempt to push for a draw in Perth as the hosts claimed the series win.
Guillier conceded a "severe defeat" defeat to his supporters as the result came in.
The outage struck Hartfield-Jackson Atlanta International Airport at around 1pm local time, stopping all outgoing flights.