The jury in the trial of murdered Joanna Yeates has retired to consider its verdict.
Earlier, the court heard the closing remarks of the prosecution and defence, in which contrasting accounts were given of the landscape architect's final moments.
Vincent Tabak, 33, who lived next door to the victim, claims that he did not intend to kill the 25-year-old but admits to committing manslaughter at her Clifton flat.
However, the prosecution maintain that last December's attack was deliberate and planned.
Mr Justice Field presiding urged the jury to reach a unanimous decision, adding that they should "not allow emotion to enter into your deliberation". He said:
"The defendant is charged with murder - the most serious charge in the calendar of the criminal law.
"This is a tragic case. A lovely young woman, with a promising future ahead of her, has been robbed of her life.
"Her death will have, and doubtless continues to have, a devastating effect on her family."
During the trial at Bristol Crown Court the Dutch engineer described his actions as "horrendous" as he showed jurors with his own hand how he strangled his next-door neighbour.
In his summing up, the judge told the six men and six women sitting: "It is for you to decide which evidence you accept and which evidence you do not."
"Please make due allowance for the stress the defendant is under, facing this very serious charge and bear in mind this defendant gave his evidence in English, which is not his first language.
"If after considering all the evidence you are sure the defendant is guilty you must return a verdict of guilty.
"If you are not sure your verdict must be not guilty."