Watched "El Chapo" Commit 3 Gruesome Murders: His Ex Bodyguard's Trail

A former bodyguard for accused Mexican drug lord Joaquin "El Chapo" Guzman testified at Guzman's U.S. trial on Thursday that he watched his boss personally carry out three gruesome murders of rival drug cartel members.

The killings described by Isaias Valdez Rios in federal court in Brooklyn, New York, were the first in the three-month-old trial to be attributed to Guzman himself, rather than underlings following his orders.

Guzman, 61, was extradited to the United States in 2017 and has been on trial since November on charges of trafficking vast amounts of cocaine, heroin and other drugs into the country as leader of the notorious Sinaloa Cartel. His lawyers have claimed he was framed by another powerful drug trafficker, Ismael "El Mayo" Zambada.

Valdez, a 39-year-old former member of the Mexican army's special forces, said he began working for Guzman as a guard in one of his mountain hideouts around 2004. He was arrested in 2014 on U.S. charges and is cooperating with prosecutors.

Valdez said that, around 2006 or 2007, Zambada delivered a member of the rival Arellano Felix drug cartel to Guzman. Valdez said Guzman was displeased to find that the prisoner had already been tortured with a hot iron.

Valdez said Guzman kept the prisoner with him for several days, interrogating him twice. Eventually, he ordered his workers to dig a grave for the man, according to Valdez.

Guzman then shot the prisoner with a handgun and ordered him buried, though he was still "gasping for air," Valdez said.

On another occasion around the same time, Valdez said, an associate delivered two members of the Zetas, another rival cartel, to Guzman.

After torturing the prisoners for about three hours, Valdez said, Guzman ordered his underlings to dig a pit and light a fire in it. He then shot each of the Zetas in the head and ordered the bodies thrown in the flaming pit, according to Valdez.

"He said, 'I don't want any bones to remain,'" Valdez testified.

Guzman later ordered Valdez himself killed because he wrongly thought he was stealing money, but was persuaded to drop the order, Valdez said. Valdez testified that he went on to pilot drug planes for the cartel.

Prosecutors have said they expect to wrap up their case on Monday. Guzman's lawyers will then have a chance to call their own witnesses. It is not yet clear whether Guzman will testify himself.