GRAND RAPIDS (WWJ/AP) - A man convicted of killing his girlfriend before exchanging gunfire with police on a Michigan freeway has been sentenced to life in prison without parole.

Adam Nolin, 34, was given the mandatory punishment Monday after a Kent County jury convicted him of first degree murder in June. He declined to make a statement at the hearing.

There was no dispute that Nolin fatally shot 27-year-old Tia Randall in the Creekside Estates Mobile Home Park in Wyoming, near Grand Rapids, in September of 2018. His lawyer insisted Nolin acted impulsively, not with premeditation.

Nolin called his mother after the shooting and she alerted authorities in the Grand Rapids area, setting off a manhunt.

When the suspect was spotted driving a pickup truck on northbound US 131, a chase ensued into Grand Rapids, where police said Nolin crashed on a curve, got out of his vehicle, and opened fire at officers, who shot back.

"While the suspect continued to shoot at officers, a Grand Rapids officer used his cruiser to strike the suspect ending the lethal threat," police said in a release out after the incident.

While no officers were hurt, Nolin suffered serious injuries and was seen bloodied in his booking photo.

As for a motive, prosecutors said Nolin was upset because Randall was interested in another man.