CONCORD, N.H. (AP) – A New Hampshire woman sentenced to prison for causing a crash that killed a 10-year-old girl wants her sentence reduced.

Nancy Lamprey was driving a pickup in September 2000 that slammed into a tree, killing Katie Silva and hurting five other children she was baby-sitting. The girls were in the covered back of the truck and said Lamprey was swerving on a dirt road to roll them around in the truck.

Lamprey, 42, was convicted of manslaughter in 2001. At the time, the judge said he’d consider reducing her 15-to-30-year sentence if she created a comprehensive community service plan promoting seat belt use. She lost her first attempt last year for a sentence reduction.

On Thursday, she’ll try again.

Silva’s parents oppose the reduction and have collected 350 signatures on a petition posted on the Internet supporting them.

“The judge has destroyed our healing process by creating this back door for her to get out of her sentence. I’m not sure who he is trying to help, but he’s not helping the victims, that’s for sure,” said her father, Greg Silva of Loudon.

The parents of the other children and Merrimack County Attorney Dan St. Hilaire declined to comment on Lamprey’s request.

The Silvas are hoping they won’t be alone when they attend Lamprey’s court hearing. They have appealed to the public through the Internet to oppose Lamprey’s request.

Donald Sullivan of Northfield voiced his support on their petition.

“The children and the families cannot petition the court to reduce their sentence, a lifetime of pain and suffering. Nancy Lamprey should not be able to either,” he wrote.

Lamprey’s lawyer, Peter Callaghan, will ask Judge Edward Fitzgerald to suspend her remaining sentence.

Lamprey’s critics fault her for not taking full responsibility for the crash. Lamprey has suggested in the past that the truck malfunctioned and hit a rock – though she said she should have belted in the children.

Callaghan declined to describe Lamprey’s safety campaign and how it compares to her earlier effort to win release.