article_snippet.sent: Leslie Cooper, 36, appeared at the Old Bailey on Thursday, where the court was told that Mr Arwani, 48, was lured to a meeting with a potential customer for his construction business before being killed.
article_snippet.sent: A 53-year-old woman was also arrested on suspicion of the commission, preparation and instigation of acts of terrorism.
article_snippet.sent: They are both in Metropolitan Police custody while counter-terror officers continue to investigate Mr Arwani's killing.
article_snippet.sent: Suspects: Leslie Cooper, left, appeared in court charged with murder while Burnell Mitchell, right, has been arrested on suspicion of terror offences .
highlights_snippet.sent: Leslie Cooper, 36, has already appeared in court accused of murder .
  
highlights_snippet.sent: Burnell Mitchell, 61, and a 53-year-old woman were also arrested on suspicion of terror offences .