A woman was killed in an apparent act of violent murder on a New York City subway train on Sunday morning when a man set her clothes on fire with a lighter. The suspect, believed to be a Guatemalan immigrant, was arrested about eight hours later at another station in Manhattan. Eyewitness surveillance footage shows the suspect observing the victim as flames engulfed her. The incident has been condemned by city officials, including Mayor Eric Adams, who praised those who assisted in the swift arrest. Authorities continue to investigate the circumstances surrounding the attack.