Kohrs was born and raised in Phoenix, Arizona. He had an outstanding high school career at Brophy College Preparatory and was recruited to play for the Sun Devils in 1976. With Arizona State Kohrs racked up 214 tackles and 30 quarterback sacks. In 1977 in a game against USC Kohrs was named "Player of the week" by Sports Illustrated Magazine after achieving six tackles, one quarterback sack, three fumble recoveries and three pass deflections. That same year he helped the Sun Devils to a conference title. In 1978 Kohrs had 15 tackles in a game against Arizona. Kohrs made first team All-Pac-10 in 1979. He was drafted in the 2nd round of the 1980 NFL Draft by the Pittsburgh Steelers. He played five seasons in the NFL before retiring after the 1985 season.