GUNNISON, Colo. (KREX) — The Gunnison County Sheriff’s Office has released the arrest affidavit for a double homicide arrest made last week.

Gunnison County District Attorneys expect to charge a Grand Junction man with two counts of first-degree murder after two men were found shot to death on U.S. Highway 50 near the Blue Mesa Reservoir.

According to an arrest affidavit obtained by Western Slope Now, Gunnison County sheriff’s deputies arrested 27-year-old Zachary Baker on May 8th. Law enforcement arrived at the scene and found a pickup truck on the side of the road in the sagebrush, and Baker was reportedly on the phone with his mother, telling her what happened.

In the affidavit, responding deputies alleged Baker confirmed he shot someone in the truck, detained him in handcuffs and put him in the back of a GCSO patrol vehicle. The deputy then searched the pickup truck and found two men slumped over in the truck with what he believed to be gunshot wounds to both individuals.

Investigators believe 33-year-old Estefan Coronado of Fruita and 45-year-old Colin Roy to have been shot in the back, with exit wounds on the front of their bodies.

Law enforcement brought Baker to the Gunnison County Sheriff’s Office for questioning. Baker informed officers he only met Coronado and Roy a couple of weeks ago and they met through a mutual friend. The three reportedly began their journey in Palisade and stopped in Grand Junction to pick up a trailer and load a four-wheeler and dirt bike onto it.

Baker informed investigators the three men then traveled south on 1st Street and through Orchard Mesa towards Delta, Colorado. Baker claimed Roy and Coronado began acting hostile towards him once they left Grand Junction, telling investigators the two were ignoring him and making comments about hiding a body.

According to the affidavit, the truck stopped at the Maverick gas station in Delta and sat in the parking lot for hours. When Baker went into the store, Roy and Coronado allegedly took and unloaded Baker’s firearm that he had left in the truck. The two reportedly informed Baker that he would not be needing the magazine and ammunition they removed from the gun.

Baker informed investigators Roy and Coronado eventually gave his gun back to him, not knowing Baker had another loaded magazine on his person. He then told investigators he feared for his own safety as he believed Roy and Coronado were paranoid of him.

According to the affidavit, Roy would tell investigators what happened in the time they left Delta and were contacted by law enforcement. Baker reportedly did not provide a response when investigators asked about the blood on his clothes.

An investigator informed Baker the incident sounded like a self-defense situation; Baker stated this was true. Baker reportedly told the investigator he knew what happened and that he did not know how to say it or what to say.