In what was supposed to be a night of celebration, has turned to tragedy as Gilbert Estrada has somehow caught on fire, while celebrating with friends at the West Hollywood Parade.Police are currently searching for answers as to how caught on fire, and do not know if it was accidental or if the victim was intentionally set on fire.Some in the crowd thought it was a promotional stunt, and many seemed reluctant to offer assistance even after the flames had died down.Even as Mr Estrada lied on the ground motionless, some of the crown celebrated his demise, including "Steven" who said "Shit was fuken crazy thats me pumping da crowd up lol﻿" on social media pages.Mr Estrada succumbed to his fatal injuries and died the following morning in hospital. More info from NBC under the clip.Local Press usnews.nbcnews.com/_news/2013/11/03/21298896-los-angeles-pol Authorities are investigating the death of a man who somehow became consumed in flames Thursday during a Halloween festival in a Los Angeles neighborhood and later died of his injuries.Gilbert Estrada, 51, was transported to Cedars-Sinai Medical Center on Thursday after mysteriously becoming engulfed in fire at the West Hollywood Carnaval, an annual Halloween street party that typically draws tens of thousandsof people.He was pronounced dead Friday morning, Lt. Cheryl MacWillie of the Los Angeles County coroner's office told the Los Angeles Times. The sheriff's homicide unit is investigating Estrada's bizarre death, Deputy Irys Alvarez told the newspaper, adding that it was unclear whether the incident was an accident or a crime.Video footage of the incident shows a person in flames next to a crowd standing near a performance stage. Someone in the video can be heard saying, "He's on fire!" as people rush in to assist the man, whose pantsappeared to have been covered in fire.After the flames were put out, multiple people can be heard heckling the man. They ask what hewas doing as he lies shirtless on the ground. That's when the crowd starts to shout and dance around the man, who seems to remain still.The department is calling on the public for leads in identifying the source of the ignition or how Estrada caught fire.