A pair of ISIS-trained extremists were charged with hurling an IED at Gracie Mansion duringa rowdy weekend protest — allegedly packing the homemade bomb with “Mother of Satan,” a volatile explosive favored by international terrorists, NYPD Commissioner Jessica Tisch said during a press conference The two pro-Muslim fanatics – Ibraham Kayumi, 19, and Emir Balat, 18 – both self-radicalized in recent years and traveled to Turkey and other terror-training hot spots, law enforcement sources close to the case told The Post.
