An intruder beat a woman to death when he confronted her in her home, a court has heard.
Laila Rezk fell into a coma and died the day after the attack
Laila Rezk's blood-soaked body was found by her two children when they returned for a family dinner.
Mrs Rezk, aged 51, was attacked by Lloyd Edwards at the house in Kingston Vale, south-west London, in November 2006, Kingston Crown Court was told.
Edwards, 19, of Norley Vale, Roehampton, south-west London, admits manslaughter but denies murder.
Prosecutor Richard Whittam said Edwards launched a violent attack leaving Mrs Rezk with severe brain damage, deep cuts, bruising and fractures.
When her daughter Dina, 22 at the time, and son Tamer, then 20, walked in through the open door their mother was still breathing.
They found blood smeared around the hallway and called out for their mother.
"Dina saw blood in the downstairs toilet. It was smeared on the walls and floor and her mother's three-band ring lay on the tiled floor.
"She then saw her mother lying on the floor in the living room. She started screaming hysterically."
He said that Miss Rezk "could not recognise her mother's face" because of the injuries she had suffered.
Jurors heard Mrs Rezk fell into a coma and died the next day, hours after her husband Maurice returned from Egypt where he had been visiting relatives.
The injury that killed Mrs Rezk was likely to be the "hyper-extension" of the neck as her head was forced back by a blow, causing catastrophic damage to her brain stem, the court heard.
The court was told Edwards entered the house with the intention of carrying out a burglary.
He told officers he trained as a boxer and kept himself fit but even so he did not think he had seriously hurt Mrs Rezk.
Prosecutor Richard Whittam told the jury: "Lloyd Edwards killed her. He did so with his bare hands - no weapon was used."
The case continues.