The jury in the 21 July terrorism trial was discharged today after failing to reach verdicts on the last two defendants in the case.
After deliberating for more than a week, the nine women and three men remained deadlocked over whether Manfo Kwaku Asiedu and Adel Yahya were involved in the failed suicide bomb plot.
Yesterday they convicted four others of conspiracy to murder after a trial at Woolwich Crown Court lasting almost six months.
Muktar Said Ibrahim, Yassin Omar, Ramzi Mohammed and Hussain Osman, who all came to Britain as refugees from war-torn African nations, now face life sentences.
The convictions of the four men, who will be sentenced tomorrow, has led to questions being raised about the role of anti-terrorist police and the security services in the case.
Ibrahim, the leader of the plot, was allowed to leave the UK while facing charges over extremist behaviour before returning to plot the attack exactly a fortnight after the 7 July attacks in which 52 people were killed.
