TULSA, Oklahoma - The man who caused a crash that killed a Tulsa man and badly hurt his son was sentenced Tuesday.

The judge sentenced Martin Jamison to 40 years in prison and five years of probation.

Jamison pleaded guilty to felony murder, DUI and leaving the scene of a collision.

Police said he was speeding away from an accident in February 2016 when he ran a stop sign and crashed into a red Chevy pickup in the 5400 block of North Lewis.

The driver of the truck, 68-year-old Marvin Shahan, was killed and his son, Michael Shahan, was thrown from the truck and seriously hurt.

Michael Shahan wrote in a victim impact statement he had to learn to walk again and still has nightmares about that day.

Assistant District Attorney Julie Doss said Jamison had not been remorseful in the past, but in court Tuesday, Jamison told Shahan's family he's remorseful and wants forgiveness but does not expect it.

The assistant DA said she hopes he's telling the truth.

"I think people in Mr. Jamison's situation have a lot of time to think and reflect, and I don't have any reason to sit here and claim that he wasn't being genuine here today," Doss said.

The judge said Jamison's criminal history factored into his sentence because he got out of prison in 2011 and took a life just five years later.