LONDON (AP) — A man seen with bloody hands wielding a butcher knife after the killing of a British soldier on the streets of London was described as a convert to Islam who took part in demonstrations with a banned radical group, two Muslim hard-liners said Thursday.

Police raided houses in connection with the brazen slaying of the off-duty soldier, identified as Lee Rigby, of the 2nd Battalion The Royal Regiment of Fusiliers, who served in Afghanistan. In addition to the two suspects who were hospitalized after being shot by police, authorities said they had arrested a man and a woman, both 29, on suspicion of conspiracy to murder.