Tom Teves and his wife Caren at the preliminary hearing for James Holmes at the courthouse in Centennial, Colorado.
Their son Alex died in the shootings in July last year protecting his girlfriend from the gunfire.
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The hospital was last attacked just three days ago, something that UN Secretary General Ban Ki Moon denounced as a war crime.
Former UKIP leader Nigel Farage has flown to the US to help coach presidential candidate Donald Trump ahead of his next debate.