Rudolfo Infante and Anna Villeda
Rudolfo or Rodolfo Infante Jímenez and Anna or Ana María Ruíz Villeda are a Mexican-American serial killer pair, active during 1991, in Matamoros, Mexico. They killed 8 women motivated by sexual compulsion.
They lured their victims, young women, with servant job promises, then raping, robbing, and killing them. They were captured on October 21, 1991 and sentenced to 40 years in prison, the maximum possible conviction in Tamaulipas state at this time.