This sounds state-sponsored to me: why would initial reports blame a lone Santa Claus but then this is all contradicted?
Police in Istanbul are hunting for a gunman who opened fire at a nightclub, killing at least 39 people.
...The attacker left his gun at the scene before fleeing, the Turkish Prime Minister Binali Yildirim said.
He also confirmed the gunman was not dressed as Santa Claus, contradicting earlier reports.
...Police believed there was only one gunman, he said, although some eyewitness reports mentioned multiple attackers.
Istanbul nightclub attacker left gun behind and was not wearing a Santa Claus outfit, Turkish PM Yildirim says https://t.co/ZA63o9hTpx— BBC Breaking News (@BBCBreaking) 1 January 2017