Birmingham sisters murder: Man convicted of murder
The prosecutor said: "He had left behind a scene of carnage.
"He had used violence of the most brutal and depraved kind and he had killed two young girls."
The jury was told that the partially-clothed bodies of the Algerian-born sisters were found last September at their fourth- floor flat near to Birmingham Broad Street entertainment district.
In his opening speech, Mr Crigman added that Ali was arrested in Dover, Kent, two days after being seen leaving the flat.
"In this case, it's likely that there will be overlapping motives - anger, control, base male brutality and a significant sexual dimension," the lawyer said.
The court heard that the attack on Sabrina had a sadistic element - with 32 of the wounds she suffered inflicted with apparent precision rather than in anger.
During Ali's evidence, he tried to undermine forensic evidence of a sexual dimension to the killings by claiming to have had consensual sex with Yasmine shortly before being provoked into killing her.
Jurors were shown photographs taken by police of the bloody scene inside the flat, including one showing the sisters' bodies lying on a bed.
Both were naked from the waist down, but an item had been thrown over their lower bodies, the court heard.
