What’s the evidence which Israel says links Anas al-Sharif to Hamas?

Anas Al-Sharif was one of five journalists among seven people killed in an Israeli air strike on Gaza City. The five worked for the broadcaster Al Jazeera.  Israel says Sharif was the head of a Hamas cell but has only produced limited evidence about its claims.  Al Jazeera rejected the accusations and said the strike was a "blatant" attack on press freedom.  On this episode, Niall Paterson and Sky News international correspondent Diana Magnay look at Anas Al-Sharif's career, Israel's claims and the international condemnation of what happened. Producer: Natalie Ktena and Emily HulmeEditor: Paul Stanworth