Two 17-year-olds conspiring to kill an ex-girlfriend were arrested Friday, a sheriff’s official said.

Kevin Jace Pettitt and Wyatt Franklin Bowman were booked into the Pima County jail and face one count each of conspiracy to commit murder.

The two friends were plotting to kill Pettitt’s 18-year-old ex-girlfriend, the mother of his year-old child, said Deputy Tracy Suitt, spokesman for the Pima County Sheriff’s Department.

“The whole thing began around Christmastime when the two began to conspire about killing the 18 year old female. A third party heard about this and gave the information to the victim in this case who reported it to the sheriff’s department,” Suitt said.

Pettitt was “upset” over issues involving money and custody, Suitt said. The teens planned “to lure her into the desert, shoot her, remove her teeth and then burn her so she could not be identified.”

Pettitt offered to pay Bowman to help him, Suitt said.

The plot was brought to the attention of detectives in the sheriff’s Domestic Violence Unit early last week and investigators found “enough evidence to arrest the two for conspiracy to commit murder,” Suitt said.

Bowman is being held on $50,000 bond. Pettitt is being held without bond.