Detectives review Becky Hall cold case murder
The murder of a young mother killed in a "vicious attack" is being reviewed by detectives.
Rebecca Hall disappeared 15 years ago and her body found almost two weeks later in an alleyway in Thornton Street, Bradford.
The 19-year-old sex worker, known as Becky, had suffered severe head injuries, police said.
The force is to review the cold case using recent advances in forensic science.
Ms Hall, who had a four-month-old son at the time, went missing from the Little Horton area at about 22:00 BST on 13 April 2001.
The force said she was found on 26 April and had been "viciously assaulted".