He was also obsessed with weapons, military techniques and tactics, the jury was told.
He previously chaired the jury in 1983 when Jean-Luc Godard's First Name: Carmen was awarded the Golden Lion.
The attempted murder was captured on CCTV cameras and played to the jury during the trial.
The jury also heard details of another police interview held on the same day.
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The jury heard earlier on Wednesday details about where he had lived and his various jobs.
Mr Whittam told the jury an expert studying the device said its claims were highly dubious.
The jury had heard how as teenage schoolboys Mr Beckford and Mr Brown had been friends.
That stoicism in the face of emotional testimony disappeared in the jury room, he said.
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As the jury filed out of the courtroom, one juror said, "I'm sorry" to Alexander's family.
CNN: Arias trial jury foreman calls decision 'gut-wrenching'
In many states, the death penalty would be off the table if the jury couldn't agree.
CNN: Arias trial jury foreman calls decision 'gut-wrenching'
Petrocelli's pushy New Jersey-meets-Los Angeles style was not received well by the jury of Houstonians.
The trial continues on Tuesday when the jury is expected to consider its verdict.
Kilpatrick blamed his loss on the racial make-up of the jury and vowed to appeal.
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About an hour later, the jury informed the court it was unable to reach a decision.
The case has been adjourned until Thursday when the jury is expected to be sent out.
On the latter, management sounds confident though we believe the jury is still out.
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After the jury's verdicts, coroner Michael Rose expressed his sympathy to the families of the dead.
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As Martinez showed images of Alexander's wounds to the jury Wednesday, members of Alexander's family wept.
The jury was told that, following complaints, two trading standards officers visited the park.
At the trial, Apple convinced the jury that Samsung had infringed its iPhone and iPad patents.
Her trial was halted last week after the jury failed to reach a verdict.
He told the jury that he did not have contact details for any of them.
The jury could not agree a verdict, but Lane was convicted at a retrial.
The evidence at trial favored Hotchkiss, and the jury's verdict was "unjust and irrational, " they wrote.
Crowds outside the courthouse erupted in cheers as news of the jury's decision spread.
If the jury decides on a death sentence, the judge is bound by that decision.
Earlier, Ms Evans warned the jury that the case was "likely to provoke strong emotions".
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Mr Lobbenberg told the jury the scam was run from call centres in Spain and Turkey.
The jury heard millions of pounds were transferred from the UK to bank accounts in Spain.
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