A woman walks across the University of Arkansas-Little Rock campus in Little Rock, Ark., Tuesday, Oct. 18, 2011. The body of slain student Patricia Guardado, who was last seen near the school Oct. 12, was found Sunday south of Little Rock. Police ruled her death a homicide, but authorities haven't named any suspects or released details about how the 20-year-old sophomore was killed. (AP Photo/Danny Johnston)
October 19, 2011 6:36:58 AM PDT
By JEANNIE NUSS Associated Press
LITTLE ROCK, Ark. (AP) - October 19, 2011 --
In a university classroom, students studying Spanish watched a film about the horrific murders of young women in Mexico. As the credits rolled, there was a knock at the door.