He was found in his auto "riddled with bullets" in Hidalgo, which has one of the highest murder rates in the country.
The new season of Narcos is expected to focus on the origins of the Juarez cartel in Mexico, and filming was supposed to go down there as opposed to Colombia where past seasons were shot.
A graduate from the University of the Americas, Munoz has been working in the film industry for more than decade as a locations manager. It remains to be seen whether production on season four of Narcos will be in any way affected by Munoz's death, or whether the creatives will move forward with Mexico locations for the episodes yet to be filmed.
Redrum has previously worked on high-profile movies including, "Sicario", "Spectre", "Fast & Furious" and "Apocalypto".
Authorities have not yet released any details about a potential motive or suspects. Netflix nor anyone associated with the show supplied any further comments about the passing of their valued crew member. Nor confirmation either way had been made public by Netflix at the time of this writing. It's now unclear if Portal's death will affect production or whether the murder will move production back to Columbia.