A 14-year-old boy was being held on suspicion of murder Wednesday after the body of a female teacher was found in woods near the high school in Danvers, Massachusetts. All seven schools in the suburban Boston town were closed as a result of the investigation. The report of Colleen Ritzer's death comes two days after a student with a gun killed a teacher in Sparks, Nevada. Authorities found Ritzer's body behind Danvers High School after the 24-year-old failed to return home after classes Tuesday, the Essex County District Attorney's Office said. Searchers found blood in a second-floor bathroom, District Attorney Jonathan Blodgett told reporters at a news conference.