The school police officer who cuffed the suspect in Wednesday's stabbing spree that injured 21 students and one adult was back on the job the next day.
William "Buzz" Yakshe, a Murrysville, Pa., police officer, serves as the school resource officer for Franklin Regional High School.
He was the first person to alert authorities to the carnage unfolding in the hallway, calling in a "critical incident" during the rampage.
By the time reinforcements arrived at the school, suspect Alex Hribal had been disarmed by assistant principal Sam King and restrained by Yakshe.
Franklin Regional was closed on Thursday, but Yakshe was back at his post at the school. He declined to talk about the incident.
Yakshe was not wounded in the attack, but a security guard at the school, John "Sarge" Resetar, was stabbed. He was treated and released.