A Mexican drug cartel leader whose arrest led to the torture and killings of 12 Mexican police officers has been sentenced in the United States to 43 years in prison on drug charges, according to investigators, NY Post reported.

Arnoldo Rueda-Medina, known as “La Minsa” in the La Familia Michoacana cartel, was sentenced by a federal judge in Dallas on Wednesday. Rueda-Medina was also ordered to pay a $5 million fine.

The cartel is responsible for smuggling thousands of kilograms of meth into the U.S. and stashing it in Texas and other locations, according to federal officials.

Rueda-Medina, 48, was arrested in Mexico in 2009 and extradited to the U.S. in 2017. Following his arrest, cartel operatives attacked the police station where he was being held with grenades and high-powered rifles. They also ambushed other government facilities and kidnapped the 12 officers in retaliation. The officers’ bodies were bound and dumped on a mountain road, and showed signs that the men had been tortured.