WARNING: Spoilers ahead for Better Call Saul season 6, episode 8
Better Call Saul takes a popular Lalo Salamanca fan theory and adds a whole new layer of misery. Ever since Tony Dalton's arrival in Better Call Saul, his Lalo Salamanca has been locked in a deadly feud with Giancarlo Esposito's Gustavo Fring. Because both technically operate under the same cartel banner, one can't murder the other without upsetting powerful people. Instead of gunning for Gus directly, therefore, Lalo takes the smarter approach of seeking proof his nemesis is a traitor, and spends much of Better Call Saul season 6 sniffing out the secret superlab Gus built behind the cartel's back.
Gus realized this was Lalo Salamanca's intention earlier in Better Call Saul season 6 part 1. Under the guise of routine surveillance, Gus visited his superlab, carefully arranged the environment to his advantage, and hid a firearm somewhere easily accessible. One popular Better Call Saul theory suggested that Gus wouldn't just shoot Lalo Salamanca at the superlab, but that the cartel gangster's body would actually be buried under the construction site itself, perfectly hidden somewhere only a small handful of people know even exists.
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Better Call Saul season 6, episode 8 («Point & Shoot») confirms this theory… but with a morbid twist. As predicted, Gus Fring guns down Lalo Salamanca at the superlab, and rather than risk dragging the body outside, into a car, and disposing of Lalo's corpse elsewhere, Gus does indeed have his nemesis buried beneath the superlab from Breaking Bad. Subverting expectations, however, Better Call Saul goes one better by revealing Gus wasn't the superlab's only
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