UK Police Question Alleged Soldier Killer's Friend Counterterrorism police on Saturday questioned a friend of alleged Islamic extremist Michael Adebolajo, one of two suspects in a savage killing of a British soldier on a London street that has horrified the country. The friend, Abu Nusaybah, was arrested immediately after he gave a BBC Television interview Friday describing how Adebolajo may have become radicalized in Kenya and alleging that Britain's security services tried to recruit him six months ago. Police said Nusaybah was wanted on suspicion of involvement in unspecified acts of terrorism. Adebolajo, 28, and Michael Adebowale, 22, are suspected of killing soldier Lee Rigby by hacking his body with knives and a meat cleaver in front of dozens of passersby Wednesday in the southeast London district of Woolwich. The horrific scene was recorded on witnesses' cellphones, and a video has emerged showing one of the two suspects making political statements and warning of more violence as the soldier lay on the ground. Police shot both men as they arrived minutes after Rigby's slaying. Both suspects remain under armed guard at two London hospitals. The attack has sparked fears of anti-Muslim sentiments in Britain. Police on Saturday arrested three people on suspicion of posting racist comments on Twitter ahead of a march organized by the far-right group English Defense League in the northern city of Newcastle. Police said some 1,500 people took part in the march. The group, which has clashed violently with police in the past, has used Rigby's murder to criticize the British government for not paying enough attention to radical Islam in the country. About 350 people staged a counter-demonstration. Faith Matters, a charity campaigning against extremism, said its helpline has received 162 calls since Rigby was killed from people reporting anti-Muslim incidents including attacks against mosques. Questions abound over what could have led the two men to attack Rigby, a 25-year-old ceremonial military drummer and machine-gunner who had served in Afghanistan and was off duty when he was walking near his barracks. Nusaybah's interview offered one possible narrative. He said Adebolajo's behavior changed after he allegedly suffered abuse at the hands of Kenyan security forces. Nusaybah said Adebolajo became withdrawn after he was allegedly arrested and then abused both physically and sexually while in jail. Although that change wasn't necessarily one that became overt, aggressive or anything like that, he became ... less talkative. He wasn't his bubbly self," Nusaybah told the BBC. He claimed that agents from Britain's domestic spy agency, MI5, approached Adebolajo after he returned to Britain and initially asked him if he had met specific Muslim militants, then asked Adebolajo if he was willing to act as an informer. "He was explicit in that he refused to work for them," Nusaybah said. The BBC said police arrested Nusaybah outside its studios Friday night immediately after recording the interview. "This interviewee had important background information that sheds light on this horrific event," the BBC said in a statement. And when we asked him to appear and interviewed him, we were not aware he was wanted for questioning by the police. London police confirmed that a 31-year-old man was arrested Friday night on suspicion of "the commission, preparation or instigation of acts of terrorism." Police declined to identify Nusaybah by name or provide further detail.