In 1980, Blancornelas re-surfaced with the weekly publication "Zeta", which he co-founded with Félix. The magazine printed copies in the United States and then smuggled them across the border into Mexico. After some years, they reestablished themselves in Tijuana. Through the magazine, the pair continued their investigation into organized crime and corruption. The magazine ran a cover story in 1985 about local police guarding a marijuana-filled warehouse; the story was the first to report on the future leaders of the Tijuana Cartel, the Arellano Félix brothers. After Blancornelas discovered that plainclothes police officers had bought all 20,000 copies of the issue, "Zeta" republished the issue under the headline "Censored!" In 1987, the "Zeta" magazine lived an attack, when two men in a brown Toyota pick-up truck opened fire at the installations one morning.