Mr. Killinger became a music teacher in the Charleroi Area School District in the fall of 2005. During his 10 years of teaching in the district, Mr. Killinger taught a variety of subjects including Middle School Choir, Middle School Band, High School Symphonic Band, and Jazz Band. He also directed the Charleroi Cougar Marching Band and pit orchestra for the spring musicals. In the summer of 2014 Mr. Killinger changed career paths and became the Assistant Principal at the Elementary Center.
Mr. Killinger earned his Bachelor of Science degree in Music Education from Indiana University of Pennsylvania and his principal certification from the University of Pittsburgh.