dozens of items of incriminating evidence

"In interview to UAE paper, Lt. Gen. Dhahi Khalfan Tamim says last month's assassination of Hamas official caused diplomatic crisis for Israel, adds has 'dozens of items of incriminating evidence to attest to Mossad's involvement'". So let me get this straight: the Mossad team did a masterful job, if it was not for the "dozens of items of incriminating evidence"? (thanks Farah)