Wichita ? A 17-year-old boy has been accused of kidnapping and strangling a pregnant 14-year-old girl as part of an agreement or contract.

Everett Le Gentry, of Wichita, was in Sedgwick County juvenile court Tuesday, facing charges that he killed Chelsea Brooks on June 9. The girl’s body was found partially buried near a wheat field in Butler County on June 15.

Prosecutors have charged Gentry with kidnapping and capital murder, or first-degree murder in the alternative. Court documents allege he used deception to take the girl.

Gentry waived his right to a detention hearing. He will be back in court Aug. 3 for a hearing on a motion to try him as an adult.

Two adults, including a 20-year-old man who is alleged to be the father of her unborn baby, were being held in connection with the case. They had not been charged as of Tuesday afternoon, said Georgia Cole, spokeswoman for the Sedgwick County District Attorney’s Office.

The mother of the girl, who was due to give birth July 4, filed for a protective order against one of those men in February on behalf of her daughter, The Wichita Eagle reported.

In her petition, Terri Brooks wrote that the man had been in a sexual relationship with her minor daughter for at least eight months. She also said he was psychologically manipulating her to keep secret the identity of her baby’s father.

In the wake of her death, the family has vowed to do whatever it takes to change Kansas law so defendants can be prosecuted for the death of a fetus.