A Michigan man is denying his involvement in a deadly crash north of Casper in October.

27-year old Ryan Nordstrom has pleaded not guilty to one charge of aggravated vehicular homicide.

In middle October, Wyoming Highway Patrol troopers were called to a two-vehicle crash on I-25, about 25 miles north of Casper.

The crash killed Daniel Barto of Montana, who was traveling with his pregnant wife and two children.

Witnesses said that Nordstrom had been driving southbound in a reckless manner, speeding and weaving his way in and out of traffic, and eventually rear-ended Barto’s vehicle.

Barto was pronounced dead at the scene, and investigators say they found a pipe and some suspected spice in Nordstrom’s vehicle.

Troopers say that the black box inside Nordstorm’s vehicle showed that he was going 81 miles per hour with 100% throttle, about half a second before the collision.

Nordstorm is free on $50,000 bond awaiting trial, and could receive up to 20 years in prison if convicted.