Cape Town High Court Judge Robert Henney has found Xolile Mngeni guilty of killing honeymoon tourist Anni Dewani.
Husband Shrien Dewani from Bristol is accused of masterminding the murder. He denies involvement.
Two other men are already behind bars after pleading guilty to the roles they played.
Xolile Mngeni listens to judge ruling in courtroom in Cape Town, South Africa.
A South African accused of killing Anni Dewani on her honeymoon has been found guilty.
Prosecutors say Xolile Mngeni was hired by her Bristol-based husband to carry out the attack two years ago.
Shrien Dewani denies involvement and has been judged currently unfit to be extradicted to face trial.
A witness has describes details of how the murder of Annie Dewani was planned during the trial of Xolile Mngeni, who is accused of the honeymooner's murder.
A witness, who cannot be named for legal reasons, has said that on the eve of Annie's murder he was approached by Zola Tongo, a taxi driver who has already been convicted over the murder, who told him that there was, “a gentleman who wanted to kill a woman”.
The prosecution maintain that this person was Annie's new husband Shrien Dewani, who remains in the UK pending ongoing extradition proceedings.
A man has pleaded not guilty to murdering Anni Dewani who was on her honeymoon in South Africa.
Xolile Mngeni's trial is at a High Court in Cape Town. It's is expected to last for six weeks.
Mrs Dewani, 28 was shot when a taxi she was in was hijacked in the Gugulethu township in November 2010.
Her husband, 32-year-old Shrien Dewani from Bristol, is accused of arranging her murder.
He denies the charge.
Last week, Mngeni's alleged accomplice Mziwamadoda Qwabe pleaded guilty to charges over the killing. He received a 25-year prison sentence.
The trial of a South Africa man accused of murdering honeymooner Anni Dewani begins today.
Xolile Mngeni is accused of pulling the trigger that killed Anni. Last week his co-accused Ziwamadoda Qwabe's pleaded guilty to murder and was sentenced to 25 years in prison.
He says Anni's husband, Bristol businessman Shrien Dewani, paid them to kill her. Dewani repeatedly denies the alligations.
Mziwamadoda Qwabe has been jailed for 25 years after revealing to the South African Court today that he murdered honeymoon bride Anni Dewani. The court heard - he also admitted kidnapping, robbery and illegal posession of a firearm.
Anni married Bristol businessman Shrien Dewani in 2010. The couple went on honeymoon to South Africa and as they drove through Cape Town their taxi was apparently carjacked. Mr Dewani said he was pushed from the vehicle. It was found the next day in the Guglethu township. Anni's body was inside.
The taxi driver Zola Tongo admitted his part of a conspiracy and is serving an 18 year sentence. He said Shrien Dewani planned the killing and paid him the equivalent of £2,000 to make it happen. South African prosecutors are fighting to extradite Mr Dewani to the country to face trial.
That has been postponed because his doctors say he's suffering from post traumatic stress disorder, is a suicide risk and unfit to face trial while still ill.
Shrien Dewani denies any involvement in his wife's murder. He remains in the Bristol hospital where he is being treated.
Along with Qwabe, another man, Xolile Mngeni is also charged and is yet to plea.
One of two men accused of being hired by British newlywed Shrien Dewani to kill his bride on their honeymoon in Cape Town has been jailed for 25 years after admitting murder.
Anni Dewani's family said they were "happy" but would not know the truth of "what really happened" until Mr Dewani travels to South Africa to face trial.
South African Xolile Mngeni still faces charges over the killing and the victim's husband. Shrien Dewani remains in medical care pending a decision to extradite him to South Africa.
A man from South Africa has pleaded guilty to kidnapping and killing honeymooner Anni Dewani.
Mziwamadoda Qwabe's lawyer said a plea agreement had been reached and signed. Anni's husband Shrien Dewani from Bristol also stands accused of arranging the murder. Last week, a British court heard that he needed a year to recover from depression before facing extradition proceedings.