The boyfriend of a 48-year-old math teacher killed an 18-year-old student after discovering the two having an affair in her bedroom, police have said. Police said 20-year-old Sixto Balbuena told them he never meant to kill Samuel Valdivia.
He allegedly told police he just wanted to show Valdivia how much he hurt him by sleeping with Tamara Hofmann. Balbuena, a Navy sailor on leave, was one of Hofmann's former students. He was arrested on a charge of second-degree murder after police found him covered in blood.
He was in jail on Tuesday and did not have a lawyer. Balbuena found Hofmann naked and Valdivia in his boxer shorts in the woman's bedroom early Friday morning, according to police reports and court documents.
Balbuena told police that Valdivia apologized to him before Balbuena began kicking, punching and throwing things at him, according to a police probable cause statement. Police said Balbuena told them he "wanted to teach the victim a lesson", and stabbed him in the lower side with a kitchen knife, according to the court document.
Valdivia later died at a hospital. He also threw Hofmann to the floor jumped on top of her and demanded to know how long she had been cheating on him, according to the document.