The Washington (Utah) County Sheriff's Office sent Texas authorities dossiers of several FLDS members "who may engage in acts of intimidation or violence again law enforcement and/or potential witnesses."

The information, obtained by the Deseret News through Texas public records laws, includes intelligence compiled during Warren Jeffs' 2007 trial in St. George for performing an underage marriage.

William Roy Jessop
• AKA "Willie the Thug" or "King Willie"
• The most serious threat affiliated with the FLDS religion.
• Reportedly has a passion for violence, weapons (legal and illegal) and explosives.
• Accused of intimidating witnesses at Warren Jeffs' trial in 2007.
• "If anything remotely resembling violence or intimidation occurs, you can be fairly certain that William had a hand in it."
• Has acted as a spokesman for the FLDS Church after the raid on the YFZ Ranch.
• Lives in Hildale, Utah.

Ruth Cooke
• A "wild card" who is "blindly devoted to Warren and the FLDS religion."

• "We reviewed countless letters she had sent to Warren that confirmed her unstable behavior, as she talked of disturbing visions she had received and breaking down the prison walls in the name of the prophet."
• "She is just the kind of person who may be capable of doing something crazy, but justified in her head."

Lindsay Hammon Barlow
• Several witnesses describe him as Warren Jeffs' "muscle."
• Barlow was "clearly in charge of the group's security."
• During Warren Jeffs' trial, Barlow "attempted to seat individuals who could intimidate the witnesses in their direct line of sight."
• Lives in Hildale, Utah.

William E. Jessop
• "Respected as a bishop in the FLDS religion."
• "He is a very powerful man in the community, but I have never received any information that would indicate that he is involved in anything of a violent nature."
• "Could be involved in the decision-making processes due to his position of power."
• Lives in Hildale, Utah.

Lyle Steed Jeffs
• Brother to FLDS leader Warren Jeffs.
• Acted as wedding security during illegal marriages conducted in Nevada.
• "Minimal information to suggest that Lyle would be considered a threat to commit acts of violence or witness intimidation."