Vincent Tabak, the man on trial for allegedly murdering blonde architect Joanna Yeates, went shopping in Asda with her dead body in the boot of his car, a court heard on Monday.
In the first day of the high-profile trial, the prosecution told Bristol Crown Court how Tabak sent a text to his girlfriend shortly after killing Yeates saying he was bored.
"Miss you loads. It's boring here without you Vxx".He later sent another text to her saying "How are you? I am at Asda buying some crisis. Was bored. Can't wait to pick you up."
Prosecutor Nigel Lickley QC, for the Crown, explained to the jury how Tabak had meant "crisps" rather than "crisis". CCTV footage from the supermarket in Bedminster, Bristol, showed Tabak wandering the aisles and he later bought beer and rock salt.
On 17 December, neighbours at a Christmas party near Yeates' Clifton flat heard one loud scream, followed by a muffled one and then a thump.
"Those screams were Vincent Tabak attacking her", said Lickley.
The prosecutor told the court how Tabak strangled Yeates with his hand or hands and held her throat "hard enough and for long enough to kill her."
"There is no doubt and neither is it in dispute as to how that young woman died", Lickley added. "He [Tabak] was in completely control and he knew what he was doing. At the same time, he knew Joanna Yeates was resisting and fighting for her life."
According to the prosecution, in the days after the killing, Tabak, who allegedly did not even know his victim's name, attended parties and dinners and coolly maintained the pretence of a worried neighbour.
"He was able to mislead and manipulate others and to hide his inner feelings".
The court heard how Yeates' body was found on Christmas morning by a couple walking their dog in the outskirts of Bristol.
Initially, Yeates' landlord Christopher Jefferies was implicated in her murder, but was later fully cleared.
Tabak admits manslaughter but denies murder.