Amid all the speculation about who killed Mahmoud al-Mabhouh, a question remains: What was he doing in Dubai?
Hamas have refused to comment on the reasons for Mr Mabhouh's trip and they have limited their public pronouncements to promises of revenge against Israel.
But why would a known militant leader - reportedly "at the top" of an Israeli hit list - leave the protection of Syria and his bodyguards to go to Dubai in the "Westernised" United Arab Emirates?
THE ARMS DEAL
According to the first scenario, a Mossad hit team found out about a planned arms deal set to go ahead in Dubai, and quickly arranged to take their chance and kill the top Hamas militant before he could buy more weapons to target Israel.
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PALESTINIAN RIVALRY
But other media accounts say he travelled to Dubai under his real identity.
He would take his bodyguards with him wherever he went, but there was no room for them on the flight
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