text: A man charged with assassinating Russian opposition leader Boris Nemstov has told a court he was beaten and pressured into confessing to the murder. Zaur Dadaev is accused of being involved in the shooting of the politician in Moscow on February 27, along with four other Chechan men. Now Russian news agencies have quoted him as telling the court that he had been abducted, beaten and pressured into confessing to Nemstov's murder. Zaur Dadaev spoken to the court in Moscow via a video link from his prison cell. Dadaev had previously confessed to Boris Nemstov's murder but now says he was beaten and pressured into make that statement . Dadaev is one of five Chechan men who have been accused of killing the opposition leader. Nemstov was shot in the back four times on a bridge close to the Kremlin in February, sparking a huge protest march in Moscow . Dadaev was the only one, according to a judge and investigators, who confessed to the killing. When he appeared in court in March, Dadaev didn't admit his guilt for the murder, and later retracted his confession. Human rights activist Andrei Babushkin, who visited the suspect in jail last month, said he had seen signs of torture on Dadaev's body. Zaur Dadaev retracted his confession for the murder of Nemstov last month. A human rights activist said when he visited him in prison he had abrasions on his body and had suffered multiple injuries . Boris Nemstov was an outspoken critic of Russian President Vladimir Putin. It is understood at the time of his death he was working on a report examining Russia's military involvement in the east of Ukraine . But the Russian state-funded television network Russia Today claimed human rights activists had found no signs of torture on Dadaev's body when they visited him in custody. Dadaev is being held with his cousins, Anzor and Shagid Gubahsev. Khamzat Bakhayev and Tamerlan Eskerkhanov have also been accused of involvement in Nemstov's murder. The outspoken politician was shot in the back four times as he crossed a bridge near the Kremlin and Red Square in Moscow. More than 20,000 people marched through the capital city in protest of his murder, holding posters of his face and signs saying: 'I am not afraid'. An outspoken critic of Putin, investigators say they are still trying to work out who ordered Nemstov to be killed.
target: Zaur Dadaev is accused of shooting the Kremlin critic, close to Red Square .
  Suspect had reportedly confessed to murder but later retracted statement .
  Claims he was abducted, beaten and pressured into confessing to murder .