AUSTIN -- The sister-in-law and niece of the alleged leader of a Mexican drug cartel have pleaded guilty in a money laundering case in Austin.
According to their plea agreements Friday, Zulema Trevino Morales and her daughter Alexandra Trevino face up to 20 years and three years in prison, respectively.
Prosecutors say they were involved in a money-laundering operation centered at an Oklahoma horse ranch that spent millions in drug profits on racehorses for the Mexico-based Zetas.
Trevino Morales's brother-in-law is purported Zeta leader Miguel Angel Trevino Morales, who is also named in the indictment and remains at large.
The indictment unsealed last year describes how the Trevino brothers and others arranged to purchase quarter horses with drug money at auction and disguise the source of the funds used to buy them.