Koehn could end up being quite a find for Randy Walker and his staff.
Before Koehn started playing varsity football, Newton had 1-8 records the two previous seasons.
With Koehn on the varsity for the past two years and playing just about every single position on the field, his team had a 7-4 record.
"I've played tight end, quarterback, fullback, wide receiver, defensive end and linebacker in high school," Koehn said.
"Northwestern wants me to play tight end or defensive end."
Why did Koehn pick the Wildcats?
"I was getting some looks from some Ivy League schools but Northwestern was a deal I couldn't pass up." Koehn said.
"I visited the campus last weekend and I just loved it. I get to play football in the Big Ten and attend one of the best universities in the nation.
"The best part of it all, is that I get a great education for free. I couldn't pass it up."
Mark's High School Coach Brent Glann had this to say about his commitment: "I think Mark is the "sleeper" find, not just for Northwestern, but in the entire Big 10. I think the Northwestern coaches know this as well."