An Oklahoma man accused of attaching a homemade bomb to a natural gas pipeline has pleaded not guilty.

Forty-year-old Daniel Herriman entered the plea Tuesday before Magistrate Judge Kimberly West in U.S. District Court in Muskogee.

The FBI says Herriman was arrested Friday after calling 911 and telling the Seminole County Sheriff's Office he had planted a bomb on the pipeline and wanted to surrender.

The FBI alleges Herriman admitted making the device and placing it on the pipeline Aug. 7 with a timer set to detonate at 2 a.m. The device did not explode and there was no damage. FBI spokesman Clay Simmonds said the agency doesn't know of a motive.

The bomb was discovered Wednesday at the Enerfin Resources substation near Okemah in Okfuskee County.

The mother of three siblings captured after an intense nationwide search says she is devastated by the arrest of her children.

Barbara Bell of East Palatka, Fla., told The Associated Press on Thursday that "throughout all of this, I think everybody just wanted it to stop."

Bell declined to discuss their ordeal in-depth, saying she didn't think it would help her children in the long run.

The three siblings, 29-year-old Lee Grace Dougherty, 26-year-old Dylan Dougherty Stanley and 21-year-old Ryan Edward Dougherty were captured Wednesday in Colorado.

Bell says she's grateful the three are not tried by the media. She says they will be tried in a court of law, "and their story will come out at that time.

The teenage daughter of a Las Vegas woman who died after an illegal buttocks enhancement surgery said Thursday there will be no justice for her mother's death after prosecutors worked out a plea deal with the unlicensed doctor and nurse who performed the procedure.

Janet Villalovos told The Associated Press she begged prosecutors not to allow Ruben Matallana-Galvas and Carmen Torres-Sanchez to plead guilty to reduced charges to avoid a trial in the death of 42-year-old Elena Caro.

The husband and wife pleaded guilty to manslaughter, conspiracy and practicing medicine without a license Thursday in Las Vegas. They each face up to nine years in prison and fines of up to $12,000, but Caro's relatives expressed concern that the court would be lenient on the couple. Sentencing was scheduled for Oct. 6.

Matallana-Galvas and Torres-Sanchez were running an illegal cosmetic surgery business in the back room of a Las Vegas tile shop when they injected Caro with an unknown substance, then showed her out the door in April, prosecutors said. She was found hours later roaming the streets in agony miles from the makeshift clinic.

An autopsy showed Caro died from an allergic reaction to the anesthesia commonly used in cosmetic surgery procedures. Matallana-Galvas' lawyer Scott Coffee said the unlicensed doctor wanted to plead guilty to accept responsibility for not providing Caro with better care.