The Old Bailey: The man accused of Jill Dando's murder told "lie after lie" when questioned by police, the Old Bailey heard.
In his closing speech, prosecuting counsel Orlando Pownall claimed Barry George was "devious" and played cat-and-mouse with the police when quizzed.
George had not mentioned in his witness statement that he returned to an advice centre two days after Miss Dando's murder, the jury heard.
The prosecution alleges George went to the offices of Hammersmith and Fulham Action for Disability to establish a false alibi.
Mr Pownall said: "The defendant was given an opportunity to tell the truth and time after time he declined that invitation and told lie after lie.
"As he realised there was an overwhelming amount of evidence contradicting his earlier assertions, he acknowledged these events - an acknowledgement a truthful interviewee would have given from the word go.
"You may think the police had done their homework, but it did not stop the defendant playing cat and mouse."
George, 41, of Fulham, south-west London, has denied murdering the 37-year-old BBC TV presenter.
Miss Dando was shot through the head outside her home in Fulham on April 26 1999.
The trial continues.
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