Hundreds of heartbroken fans honor Liam Payne during candlelit vigil in Washington Square Park

nypost.com:

was reportedly under the influence of a dangerous substance dubbed “Cristal,” when he plunged to his death from the third-floor balcony of his room at the CasaSur Palermo Hotel Wednesday night, Buenos Aires cops told TMZ on Friday.

The substance can cause users to experience hallucinations and extreme highs and extreme lows, often making them aggressive, cops said.Police believe the drug could be behind the singer’s “erratic” behavior before his death and could have caused an hallucination that played a part in his fatal fall.

While it remains unclear if his fall was intentional or accidental, an autopsy released on Thursday indicated that Payne may have been unconscious when he fell.

The singer’s body was found on the ground floor outside the Buenos Aires hotel with “a bottle of whiskey, a lighter and a cellphone,” sources told TMZ.