Video footage has emerged allegedly showing the Istanbul nightclub attacker leaving the Zeytinburnu district for the Reina nightclub.
The CCTV video, obtained by ITV News, was recorded at 10.49pm on December 31 and shows a man walking down the road wearing a hooded coat and carrying a large rucksack.
It is believed the rucksack contained the weapon that he used to kill 39 people during a mass shooting at the nightclub less than two hours later.
Bullet marks on tables, punctured cushions and a single high-heeled shoe are left as testaments to the New Year massacre at the Reina club.
At least 39 people were killed when a gunman opened fire on a nightclub where more than 500 revellers were celebrating the New Year.