Since 1991, police have filed 108 criminal charges against the six.
Brewster's mother, Frankie Brewster, 49, faced the most serious charges among them. She was charged in 1994 with first-degree murder but pleaded guilty to manslaughter and wanton endangerment. She was released from prison in 2000 after serving five years in the death of an 84-year-old woman, court records show.
In Williams' case, Frankie Brewster is charged with kidnapping, sexual assault, malicious wounding and giving false information during a felony investigation.
Bobby Brewster, 24, also of Big Creek, is charged with kidnapping, sexual assault, malicious wounding and assault during the commission of a felony.
In March, Brewster was accused in criminal complaints of attacking his mother with a machete at her home, according to court records. The outcome of those charges _ domestic assault, brandishing a deadly weapon and obstructing an officer _ was not immediately clear.
Danny J. Combs, 20, of Harts, is charged with sexual assault and malicious wounding. Karen Burton, 46, of Chapmanville, was charged with malicious wounding, battery and assault during the commission of a felony.
Burton's daughter, Alisha Burton, 23, and George A. Messer, 27, both of Chapmanville, are charged with assault during the commission of a felony and battery. She previously faced charges of assault during the commission of a felony and battery; in May, she was accused of striking Messer with a shovel and smashing the window of a woman's car. The charges are pending.
All six remained in custody Wednesday in lieu of $100,000 cash bail each. Bobby Brewster is scheduled to appear before a Logan County Circuit Court judge on Monday to be arraigned on the kidnapping charge, according to court records. A date for his mother's appearance on the kidnapping charge has not yet been set.
Public defender Dwyane Adkins, appointed to represent Bobby Brewster, and public defender Betty Gregory, appointed to represent Karen Burton, declined to comment. The other defendants' court-appointed lawyers were either in hearings or did not immediately return telephone calls Wednesday.
Neighbors of Megan Williams in Charleston recalled her as sweet-natured but said her family members kept largely to themselves.
"They were isolated, in a way," said the Rev. Norman Jones of the Greater Emmanuel Gospel Tabernacle, which Carmen Williams attended. "Carmen was very protective of Megan, so it was hard to know her well."