Four men were convicted of killing Charlene (left) and Letisha
One of four men serving life for the gunning down of two Birmingham teenagers has failed to win permission to appeal against his conviction.
Michael Gregory, 23, was convicted of killing Charlene Ellis and Letisha Shakespeare in Aston in January 2003.
Stephen Kamlish QC, for Gregory, argued crucial evidence had not been disclosed by the prosecution which could have "massively strengthened" his defence.
Judges said there was no new evidence and refused him permission to appeal.
After a 30-minute hearing at London's Criminal Appeal Court, Mr Justice Elias ruled his conviction was not even arguably "unsafe".
He said the Crown had answered defence requests for an anonymous witness to be asked again whether he would take part in an identity parade.
Mr Kamlish argued that it remained unclear whether the witness had been asked again.
Had the witness failed to pick out Gregory, the Crown case against him could well have collapsed, said Mr Kamlish.
He said the evidence against Gregory was based on mobile telephone records.
Gregory and three other men were jailed for life after being convicted of murdering the teenagers, after a six-month Leicester Crown Court trial in March.
The trial judge, Mr Justice Goldring, recommended Gregory should serve a minimum of 35 years.