BOULDER – An 18-year-old told police he helped bury, then re-dig-up Linda Damm’s body a month ago, according to an affidavit made public this morning.

Jared Sajal Guy, 18, told police he had nothing to do with the slaying of the Lafayette mom, whose decaying body was found in the trunk of a Subaru at her home at 705 W. Brome Place last week.

But he says his best friend, Bryan Grove, 17, told him that he had stabbed Linda Damm in self-defense after she went after him with a switchblade after he came to the defense of his girlfriend, Tess Damm, who is Linda’s daughter.

Guy told police that Grove described the mother as drunk and chasing Tess around the house, catching her and choking her. Bryan threw Linda off Tess, then Linda went after him with a switchblade knife, according to the story Guy told police. That’s when Bryan took the knife away and stabbed her, Guy said.

Guy was attending a dance at Standley Lake High School on Saturday when police brought him to a conference room at the school for an interview. He was arrested at 10:30 that night.

About a week after the homicide, he told police, Grove showed him Damm’s body in the Subaru. Later, he agreed to help bury the body at a cemetery near New Vista High School , where he attended.

The group dug for two and a half hours, from late at night to early the next morning – on February 6, 7 or 8, he said. They didn’t dig the hole deep enough, so a lump of dirt remained. Then, they heard what they thought was a police officer, so they sped away. Later that morning, but before sunrise, Grove and Guy went back to the cemetery, dug up the body, put it back in the Subaru and drove it back to the garage on Brome Place.

Guy will appear in Boulder County Courthouse tomorrow morning, along with Tess Damm, Bryan Grove and Jared Smith, to hear charges against them in Linda Damm’s death.

The affidavit indicates that prosecutors plan to charge Grove with first-degree murder and the other teens as accessories to first-degree murder.