Vaughan is being held on $100,000 bail while Cox is being held on $50,000 bail, according to online jail records.

Toney was later arrested and booked into the Tulsa Jail on Wednesday. She is being held on $205,030 bail, according to online jail records.

Investigators allege Campbell sexually abused the women’s children between July 2014 and July 2016.

Tulsa Police Cpl. Mark Kraft with the Child Crisis Unit described Campbell as a “major child predator.”

“What his M.O. is, he will form relationships with these women and befriend them and court them, tell them all the right things,” Kraft said. “He forms those kinds of relationships with their kids, and then he starts the sexual abuse.”

Campbell dated the women simultaneously, Kraft said, though he didn’t know whether they knew of one another.

Three of the women were charged because they were aware of the abuse and allowed it to continue, Kraft said. The fourth, Mathews, allegedly joined Campbell in sexually abusing her son from ages 4 to 6, prompting her to face harsher charges than the other women.

Investigators are aware of four child victims, Kraft said, adding they are looking into whether there are others.