Dubai police chief Dahi Khalfan Tamim said he is 99 percent sure Israel was involved in the January killing of a Hamas commander Mahmoud al-Mabhouh at a Dubai luxury hotel, according to a report published Thursday in an Emirati newspaper. “Our investigations reveal that Mossad is involved in the murder of al-Mabhouh. It is 99 percent, if not 100 percent, that Mossad is standing behind the murder,” Tamim told The National newspaper.