Iowa students accused of killing high school Spanish teacher Nohema Graber

Two 16-year-old high school students have been arrested and charged with murdering a Spanish teacher at their school, authorities said Thursday. Nohema Graber had been reported missing several hours before her body was discovered in a nearby park.

Willard Noble Chaiden Miller and Jeremy Everett Goodale have both been charged with homicide in the first degree and conspiracy to commit homicide, the Jefferson County Attorney's Office said in a statement. Both will be charged as adults.

Graber's body was found in Chautauqua Park in Fairfield, Iowa, on Wednesday, and detectives launched an investigation into her death, which appeared to be a homicide, the attorney's office said. She had been reported missing earlier that day.