I have heard the following sentence in the Narcos TV series:
Será que lo mataron de las Fuerzas Especiales o qué?
Context: a troop of Colombian soldiers is looking for Pablo Escobar in the jungle after his escape from his prison named La Catedral and them one of the soldiers ask the above question to another soldier.
I was expecting to hear "Será que lo mataron los de las Fuerzas Especiales" or "Será que los de las Fuerzas Especiales lo mataron". Is the sentence still correct without the pronoun "los" ?