Orlando shootings: Only survivor narrates how Omar shot and laughed as he killed people

US: The only survivor of the brutal Orlando gay night club shooting which claimed the life of 50 people and left 53 wounded on Sunday morning has spoken about his experience in the massacre. 26 year old Norman Casiano, the only person who escaped from his hiding place said gunman Omar Mateen laughed as he slaughtered his victims.

Casiano has been released from hospital two days after the attack at the night club and has spoken of his terrifying experience.

'I started crying and at that point a gentleman stumbles into the bathroom, collapses in front of the stall door and he's bleeding everywhere and he's begging to come inside the stall,'.

But the man couldn't fit underneath the door and the stall was so packed that they couldn't get it open. Mateen entered and shot the man one last time.

'The scary part was that he didn't say anything, and what's scarier than that when he shot the boy that was already shot, he laughed,'. 'And as he's laughing as he fires through the whole front of the stall. That's when I got my first wound.'

They started pleading for their lives, but this only seemed to spur the gunman on, who put his gun over the top of the stall and sprayed bullets towards them before leaving the room.

Casiano added that Mateen killed as many as 30 people inside the bathroom, but he managed to crawled over his friend's bodies as he made it out with four gunshot wounds.