(NewsNation) — Dailen Presgrove, the brother of Noah Presgrove, who was found dead along an Oklahoma highway, told NewsNation on Monday that he suspects foul play.

Dailen walked NewsNation’s correspondent Alex Caprariello along the road where his brother’s body was found.

“He was in the fetal position. And his body was covered up. … You can see blood seeping through the covering. … As I’m looking at it, it just seems weird. The placement of the body. The tooth, the shorts. It doesn’t look like a hit-and-run.”

Noah, 19, was found lying dead, wearing nothing but shoes, along a rural stretch of U.S. 81 in Jefferson County, Oklahoma, on Labor Day in 2023. His family says he was last seen alive at a party he attended with a group of friends.

Noah graduated from Comanche High School and had plans to join the military before he went missing after the multi-day party. The Oklahoma State Bureau of Investigation described Presgrove’s death as “suspicious.”

Dailen’s exclusive conversation with Caprariello differed from the conclusions reached by Jack Newton, a lifelong friend of Noah’s. Newton believes the death was an accident.

“I 100% believe he was hit. I think he was hit by a semi. … I don’t know. I can’t explain any of it,” Newton said. “He was not beaten to death. You can just tell.”

Newton passed a polygraph test prior to speaking with NewsNation.