India, March 6 -- NBC's "Chicago Fire" follows Firehouse 51 on its daily mission to rescue lives and fight fires. Similarly, the first episode of the "One Chicago" crossover trilogy, which links "Chicago Fire," "Chicago Med," and "Chicago P.D.," delivered one of the series' most heartbreaking twists with firefighter Macy Vasquez.

(Spoilers ahead)

The character's tragic death has elicited strong reactions from fans of Chicago Fire, where she was first presented as a promising young firefighter.

Macy, who was first introduced in season 10 episode 13, is still a new firefighter. She was forced to deal with one of the biggest tragedies in the history of The Windy City in the episode titled 'Reckoning, Part I.'

Macy Vasquez dies in 'Chicag...