Two men have been jailed for an attack on a woman who months later became one of the victims of "crossbow cannibal" Stephen Griffiths.
Jaroslav Balog and Jiri Soukal repeatedly kicked Suzanne Blamires as she lay on a street in the city in 2009, Bradford Crown Court heard.
The men were both jailed for 18 months after admitting assault occasioning actual bodily harm.
Griffiths was jailed for life for three murders, including that of Ms Blamires.
The attack by Slovakian national Balog, of Lidget Place, Bradford, and Czech national Soukal, of Stanmore Place, took place on 13 December, 2009.
The court heard heard how a witness outside the Sunbridge Mission, in Bradford's red-light district, heard her screams in the early hours on the day she was attacked.
When a woman responded she saw the two men attacking Ms Blamires, who worked as a prostitute.
Alesha Kaye, prosecuting, said: "The two men were stood over her and were repeatedly kicking her about the head and body."
She suffered a number of injuries.
The judge was told how one of the men said to the witness, "Do you want me to kill you as well?" before making a throat-cutting gesture towards her.
Five months later Ms Blamires was killed by Griffiths who shot her with a crossbow.
Her body was found in the River Aire at Shipley in dozens of pieces.
Only a small part of another of Griffiths's victims, Shelley Armitage, 31, has ever been found and there has been no trace of the body of his other victim, Susan Rushworth, 43.