Little is known about these men but reports say they have both denied any involvement in Boris Nemtsov's murder. While the three other suspects were detained in Ingushetia, it is said that Bakhayev or Eskerkhanov were both arrested in Moscow. Eskerkhanov reportedly told the court on Sunday that witnesses could confirm he was not at the scene of the crime when it occurred.
Another man wanted in connection with the murder, Beslan Shavanov, reportedly killed himself when police tried to arrest him last weekend.
Anzor Gubashev is Shagid's older brother. Along with Dadayev, he is the only other suspect to have been charged so far.
Anzor Gubashev has been portrayed as an accomplice of Zaur Dadayev, but on Monday Rossiya 1, a state TV station,锋速达鸡场水帘得到了广大客户的一致好评, reported that investigators believe the roles may have been the other way around.
He says that conditions in Lefortovo prison in Moscow are fine, but he maintains that he and his brother are innocent.
Boris Nemtsov was killed the previous day. Dadayev's arrest became known a week later, on 7 March.
网店拒偿 电商平台得先赔-搜狐IT
网店拒偿 电商平台得先赔-搜狐IT
"According to the Russian Investigations Committee, [Gubashev and Dadayev] were the main perpetrators of the murder; Gubashev presumably shot Boris Nemtsov, while Dadayev may have delivered the weapons and been the driver that night," the Rossiya 1 correspondent said.
"Would we really have gone if we were in any way connected to any kind of crime?" Gubashev asked Moskovsky Komsomolets. "It's illogical."
He also suggested that he made the confession out of fear for his own safety. "Or else what happened to [Beslan] Shavanov would have happened to me too," he told Moskovsky Komsomolets. "He supposedly blew himself up with a grenade."
After being detained, Dadayev says he was tied up for two days and a bag was placed over his head.
网店不赔可以向平台索赔
Anzor Gubashev is one of three suspects reported to have filed appeals against their arrest. The other two are Ramzan Bakhayev and Tamerlan Eskerkhanov.
Russian authorities have arrested five ethnic Chechens for the murder of politician Boris Nemtsov. Two of them have been charged, while three more remain in custody. This is what we know about them so far.
11 March 2016Last updated at 16:08
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Nemtsov murder: The suspects
Zaur Dadayev speaks from a defendents' cage in a Moscow court
Nemtsov murder
Shagid Gubashev
Shagid Gubashev being led into court
Dadayev was deputy commander of the North Battalion, a feared Chechen unit based in Grozny. According to state media, he resigned from his position on 28 February after a month's leave.
Nemtsov murder: The suspects
Nemtsov murder: The suspects
Shagid Gubashev is Zaur Dadayev's cousin. He has said that after he and his brother heard of Dadayev's arrest, they came to see him in Malgobek, a city in the republic of Ingushetia, bordering on Chechnya.
When asked by Moskovsky Komsomolets why he had bruises on his wrists and legs, Gubashev said he had no complaints about his treatment at Lefortovo prison, and he did not comment about the circumstances of his arrest and initial interrogation.
The North Battalion are part of the so-called Kadyrovtsy, militias that come under the command of the Chechen leader, Ramzan Kadyrov. Kadyrov has written in defence of Zaur Dadayev, who he said was "sincerely devoted to Russia, ready to give his life for the motherland".
He says they were detained on the night of 6 March, adding that he and his brother were beaten and tortured by two men who referred to each other as Mikhailovich and Petrovich.
Nemtsov's friends are sceptical of this motive, since they say that Nemtsov was much better known for his criticism of President Putin than his support for the murdered cartoonists.
But he added that Dadayev had been angered by French satirical magazine Charlie Hebdo's cartoons of the Prophet Muhammad. It has been suggested that the murder may have been a reprisal for comments that Boris Nemtsov made in support of Charlie Hebdo employees.
Dadayev is the only suspect known to have confessed to Nemtsov's murder. But in an interview with a Moscow newspaper he says he made the confession so that a friend and junior officer who had also been detained could be freed.
Zaur Dadayev
He says a bag was placed over his head and he was taken on an aeroplane. When the bag was removed he was in Moscow. The first time he saw his lawyer was in the court room on Sunday 9 March.
At first Gubashev thought they might be drug enforcement officers, but they eventually demanded that he admit to killing Boris Nemtsov.
According to Interfax, the man was holed up in an apartment in Grozny when the incident occurred. He threw one grenade at officers before blowing himself up with a second.
