GRAND JUNCTION, Colo. -- An affidavit released Tuesday provides new details into a fatal shooting that has shocked and puzzled the Grand Junction community, but the document still doesn't explain what motive the gunman had, or how he was even connected to the victims.

The affidavit backs up earlier police reports that the gunman followed two of the victims before his shooting spree.

Former Mesa State College President Michael Gallagher told police that on Saturday morning he and his wife had left their home to meet another couple. The group was heading to Las Vegas on vacation. When Gallagher left his house, he saw a green sport utility vehicle make a U-turn in his driveway, he told police.

When the Gallaghers got to the home of Terry and Linda Fine, both were waiting outside with their luggage, Gallagher said.

Gallagher's wife moved from the front seat into the seat behind her husband and was joined in the back seat by Linda Fine. Terry Fine had just finished loading the luggage, and was heading back to his house to set the alarm when that same green SUV pulled up and parked in the street, Gallagher said.

At first Gallagher said he thought the driver was a salesman, but then the man "pulled out a gun and fired several times at Terry Fine from close range."

"Terry Fine immediately fell to the ground where he died," the affidavit said.

Coroner's officials said Fine, a 61-year-old dentist, was shot four times and died instantly on his driveway.

The gunman then walked to the rear passenger side of the car and fired at Linda Fine, the affidavit said. Gallagher's 60-year-old wife scrambled out of the car as the shooter opened fire on her but she was too late to escape, Gallagher said.

Her body bled on the driveway as Gallagher drove off, fleeing for his life.

"He said he backed up the car, quickly, with Linda Fine still in the back seat and drove east on Chestnut to get away from the suspect," the affidavit said.

He drove to the hospital leaving his wife behind, the affidavit said.

Floyce "Flo" Gallagher, a former teacher, died from four gunshot wounds that "were not survivable," the Mesa County Coroner's Office said.

Gallagher told police he knew "his wife had been able to get out of the car, but he didn’t know what happened to her."

The gunman then shot and wounded a neighbor who heard the gunshots and ran to help as the gunman drove away, police said.

The driver of that green SUV, Stefan Alexander Martin-Urban, shot himself as authorities closed in on his vehicle, police said. Coroner's officials said Martin-Urban committed suicide with a shot to the head.

Gallagher said he didn't know the suspect and could not recall ever having seen him before.

Police Continue To Look For Clues As To Shooter's Motive

Grand Junction police have found no ties between Martin-Urban, 22, and the victims. He had left a dental hygienist program last spring at Dixie State College in St. George, Utah, authorities said.

Police have yet to determine why he would follow the Gallaghers and what brought him to the Grand Junction area. Martin-Urban, an Alaska native, had been staying with a relative in Lakewood, police said.

His aunt told Lakewood police he had vanished with her SUV Friday and that he was new to Colorado and didn't have a job or friends in the state.

Lakewood police Investigations Division Chief Dan McCasky said she downplayed her concern when she was given the option of filing a missing person or stolen car report.

"She even told the clerk she expected him to walk through the door any time now," McCasky said Tuesday. "The aunt decided that she'd give it some time and then call back the next day if he hadn't returned."

Grand Junction police said Martin-Urban, who had bought a 9mm handgun at a Lakewood gun shop Oct. 2, was in the Grand Valley area Friday morning. They have asked for the public's help in figuring out what he did between then and the shootings.

Martin-Urban has a YouTube page that has piqued interest. A video clip that he had bookmarked two months ago comes from a group that believes an alien space ship would be visible over the skies on U.S. on Oct. 14. In his profile, he lists "Kryon," as his favorite book. The series of Kryon books are new-age, metaphysical books that preaches channeling as a way to move into different realities, dimensions and time.