Paul said police expected to transfer Henderson Friday night to the Utah County Jail for investigation of aggravated attempted murder. He is expected to appear in court Monday for a bail hearing.

The incident began shortly before 9:30 a.m. at Natalie Henderson's home near where the car chase ended. Police say Trimble and Natalie Henderson fled in a Chrysler Sebring and Art Henderson followed them in a Toyota pickup truck.

Trimble called 911 during the chase and identified Henderson, according to police. The chase ended when Trimble pulled up in front of the home of his girlfriend's parents, where Henderson rammed his pickup into the Sebring, police say.

Henderson approached his ex-wife and Trimble on foot and shot Trimble while he was still sitting in the driver's seat of the Sebring, Paul said. The bullet entered Trimble's abdomen and traveled downward, exiting his leg.

Henderson shot Trimble a second time, striking him in the leg as the couple ran into her parents' house, Paul said.

In court documents seeking a protective order in February 2005, Natalie Henderson described 14 years of domestic violence.

She said that in October 2004, she was on the telephone when Henderson entered, grabbed the phone from her and ripped the phone out of the jack, according to court documents.

He "started grabbing me and I tried to run and he grabbed me and put my head through the wall," she wrote. "I yelled for some help."

She said Art Henderson grabbed a box of bullets and threw them at her head.

"Bullets went everywhere," she added.

Art Henderson then allegedly threatened to kill her. Their 16-year-old son jumped on his father's back and held him back. Another son yelled at his father to stop.

"I ended up with bumps on my head and bruises on my arms," she wrote.

Another incident in June 2004: "Art was in the living room talking to his girlfriend. . . . I was upset and asked to talk to his girlfriend. Art turned around and kicked my left leg right above my knee."

Natalie Henderson dropped to the floor. She thought her leg was broken, she wrote. She went to a doctor's office a week later. It was bruised to the bone, according to court documents.

In December 2003 during an argument in their bedroom, according to Natalie Henderson, Art Henderson held a gun to her head and threatened to kill her.

"I went to my knees on the closet floor and begged him not to shoot me," she wrote. "He then threw the gun down."

In August 2002, Art Henderson allegedly pulled out a gun, held it to Natalie's head and drove her to her parents' house.