MARTINEZ -- A Martinez man who twice ran over a carjacking victim at the Concord airport during a 2009 crime spree has been convicted of seven felonies.

A Contra Costa County jury on Wednesday found Brian Charles Parsons, 35, guilty of mayhem, two counts each of carjacking and assault with a deadly weapon, and other crimes for which he's facing more than 40 years in prison at his sentencing Dec. 14, according to deputy district attorney Jordan Ross Sanders.

The Sept. 5, 2009, crime spree started when a Concord man caught Parsons trying to steal his minivan in the parking lot of the Sam's Club on Concord Avenue. After a brief physical confrontation, the victim and a witness to the incident chased Parsons to a nearby hotel as Parsons tore off his shirt.

Parsons next carjacked a San Diego couple of a sedan at Buchanan Air Field. After Parsons twice threw the man to the ground, the man's wife tried to stop Parsons by attempting to gouge his eyes and grab his genitals as he sat in the driver's seat with the door open, Sanders said.

Parsons reversed the car, knocked the woman to the ground with the door, and ran over the woman's ankle. He ran over her leg a second time before speeding on to John Glenn Drive. She was hospitalized for weeks for her injuries, including permanent vision loss to her right eye likely caused by the door's impact, Sanders said.

Authorities don't know what caused Parsons to render the sedan inoperable before he ditched it and came across a Chico State University student who was waiting for a tow for his broken-down pickup underneath an Interstate 680 overpass to the Benicia Bridge. A still-shirtless Parsons ran up and shouted, "Give me your keys, it's an emergency," Sanders said, but the student refused. The young man ran away and called police as Parsons tried to start the inoperable pickup.

Shortly afterward, police captured Parsons outside a refinery on nearby Marina Vista Boulevard in Martinez. Parsons repeatedly struggled with two Martinez officers, leading them to use a Taser and sic their police dog on him.

The officers brought Parsons to Contra Costa Regional Medical Center in Martinez to see whether he needed medical treatment. There, he head-butted a nurse who attempted to take his blood pressure, Sanders said.

Before his trial, Parsons pleaded no contest to misdemeanor battery for assaulting the nurse, and four felony counts of resisting a peace officer with force or violence -- two for fighting the Martinez officers and two more for assaulting two County Jail deputies in March 2010.

Sanders said he believes Parsons' crime spree was motivated by his desire to avoid being caught violating his parole after the first victim in the Sam's Club parking lot sent police after him. He has prior convictions for carjacking and robbery.

"He was going to do anything he could do to escape going back to prison," Sanders said. "After three years, I'm glad the victims finally have closure."

Parsons' attorney could not be immediately reached for comment.

Contact Malaika Fraley at 925-234-1684. Follow her at Twitter.com/malaikafraley.