A manifesto left by the suspected gunman who killed six people in a shooting rampage in Santa Barbara, shows the extent of "how disturbed [Elliot] Rodger was", the sheriff's office said.
However, he added that the meeting Rodgers had with authorities did not meet the criteria for him to be held for further psychiatric examination.
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The plans had been in development since 2014, but would help underline Britain as a "global player" following the Brexit result.
The number of calls about children suffering or witnessing emotional abuse or physical violence in the home has surged in recent years.
The curtain will come down on the show for the final time at the Piccadilly Theatre in March next year, before embarking on a UK tour.