In 1984, acting on information from Camarena, 450 Mexican Soldiers backed by helicopters destroyed a 1,000-hectare (≈2,500 acres) marijuana plantation with an estimated annual production of $8 billion known as "Rancho Búfalo". Camarena, who had been identified as the source of the leak, was abducted in broad daylight on February 7, 1985, by corrupt police officers working for drug lord Miguel Ángel Félix Gallardo. Camarena was tortured at Gallardo's ranch over a 30-hour period, then murdered. His skull, jaw, nose, cheekbones and windpipe were crushed, his ribs were broken, and a hole was drilled into his head with a power drill. He had been injected with amphetamines and other drugs, most likely to ensure that he remained conscious while being tortured. Camarena's body was found in a rural area outside the small town of La Angostura, in the state of Michoacán, on March 5, 1985.