The widower of a murdered police officer sat in court on his birthday yesterday as a jury returned guilty verdicts against three of her killers.

Paul Beshenivsky, 44, saw Yusuf Jama, a 20-year-old Somali, convicted unanimously of murdering PC Sharon Beshenivsky during a bungled robbery in Bradford. Two brothers, Faisal and Hassan Razzaq, were acquitted of PC Beshenivsky’s murder but found guilty by a 10-1 majority of her manslaughter.

Sitting next to Mr Beshenivsky in the public gallery at Newcastle Crown Court was PC Teresa Milburn, who was shot and seriously injured during the same raid at an Asian travel agency in November last year.

Raza ul-Haq Aslam, 25, was acquitted of PC Beshenivsky’s murder and also found not guilty of her manslaughter.

After 3½ days of deliberation at the end of an 11-week trial, the jury of six women and five men have yet to return a verdict on an outstanding charge of robbery against Mr Aslam. The Razzaq brothers were unanimously found guilty yesterday of robbery and two firearms offences, but acquitted of two further firearms charges. Mr Aslam was cleared of four firearms offences.

Jama, from Birmingham, was also convicted yesterday on two counts of possessing a firearm with intent to endanger life. He had already admitted robbery and two other firearms offences. He becomes the second defendant to face a life prison sentence for the murder of PC Beshenivsky, who died on the afternoon of her daughter’s fourth birthday.

Muzzaker Shah, 25, from London, pleaded guilty to her murder before the start of the trial on the basis that he was a secondary party to the fatal shooting. He also admitted robbery and four firearms offences but was later cleared, at the judge’s direction, of the attempted murder of PC Milburn.

During the trial the jury was told that Shah, Jama and his elder brother, Mustaf, 26, who has evaded capture, entered the Universal Express travel agency posing as customers. Inside they produced a Mac-10 sub-machinegun and a 9mm pistol, tied up staff and threatened to shoot them unless they were handed £100,000.

The police were alerted when a silent panic alarm was triggered. The two unarmed officers were half an hour from the end of their shift when they received the call.

They parked across the road from Universal Express and were standing on the pavement outside the entrance when the robbers, who had taken only £5,000, burst out. PC Beshenivsky, 38, was shot in the heart at point-blank range and died instantly.

PC Milburn, 37, was shot in the chest and radioed for assistance as she lay on the pavement, choking on her own blood. She said in evidence that it was Shah who fired the bullets that hit the two officers.

Jama insisted, however, that he was holding the gun when the shots were discharged, although he claimed that he fired the weapon by accident. He told the jury that he had not realised that the pistol was both real and loaded.

Jama also claimed that at the time of the robbery he was suffering a head rush and after downing half a bottle of vodka he had not even noticed the two police officers when he shot them.

He repeatedly denied prosecution suggestions that his account of the robbery was a fiction to protect Shah, who was the leader of the gang. The jury heard that Shah and Jama had identical tattoos — a five-star symbol on the shoulder, with two words underneath. They had them done at the same time.

Faisal Razzaq, 25, and Hassan Razzaq, 26, both from East London, were involved in planning the raid and went to Bradford to act as lookouts.

Mr Aslam, a property officer for a company that provides housing for asylum-seekers, has denied any knowledge that a robbery was planned. He admitted travelling from Leeds to Bradford with Faisal Razzaq immediately before the raid but insisted that he thought they were going to have lunch at a chicken restaurant. He was, he told the jury, “simply in the wrong place at the wrong time”.

The trial continues.

The men involved:

Raza ul-Haq Aslam
Cleared of murder, manslaughter and four firearms charges. Robbery charge outstanding

Yusuf Jama
Convicted of murder and two firearms offences. Admitted robbery and two firearms offences

Muzzaker Shah
Admitted murder, robbery and four firearms offences. Cleared of attempted murder

Faisal Razzaq
Cleared of murder and two firearms charges. Guilty of manslaughter, robbery and two firearms charges

Hassan Razzaq
Cleared of murder and two firearms offences. Guilty of manslaughter, robbery and two firearms offences