Meet 28-year-old Ohio State University Police Officer Alan Horujko.
He's the officer who confronted Monday's Ohio State University attacker, Abdul Razak Ali Artan, just one minute after Artan began his attack by attempting to ram his car into a crowd of students.
According to university officials, Horujko radioed dispatch at 9:52 a.m. EST that a man had driven his car into a crowd of pedestrians. Just a few seconds later, the officer radioed dispatch indicating an "officer in trouble," saying there was a man with a knife attempting to slash people.
Just one minute later at 9:53 a.m. EST, Horujko radioed "shots fired" and said that one person was down after he "engaged the suspect."
Thanks to Horujko's quick thinking and decisive actions, he was able to prevent Artan from maiming or killing any more students.
Ohio State University Public Safety Director Monica Moll in a press conference Monday praised Horujko's "fabulous job" in "using deadly force to stop the threat."
Horujko joined the Ohio State University Police in Jan. 2015 after graduating from the school in 2012, according to his LinkedIn profile.
Eleven people were injured in Monday's attack, according to USA Today. The only fatality was the perpetrator.