THE sick ISIS killer who brutally hacked down a police chief and his wife has sent out a chilling message warning of mass murder at Euro 2016. French jihadi Larossi Abballa posted the terrifying Facebook live video just moments after he murdered Jean-Baptiste Salvaing and his wife. The pair were stabbed at their home on the outskirts of Paris last night. In the video he said: “Did you think that we would say inattentive? Well you have another thing coming. We have other surprises for you, the Euros. “The Euros will be a cemetery. You too (President) Hollande, I haven’t...