Not only did she intensely dislike the cousin, she was only 14 years old. "He didn't treat me nicely. I didn't want to be married at all," she says. "I ended up talking to Warren and his father and pleading with them."
Her tearful pleas were ignored and Jeffs pronounced them man and wife. She says she that while she tried to look happy in photos, she was repulsed by her new husband, and, at only 14, totally unprepared for what came next.
"I didn't have any idea where babies came from. I had no idea what had to happen physically to have a child," Wall says.
After three miserable years, Wall fled both her marriage and the FLDS, and in 2005 told her story to authorities. That led to a warrant for Jeffs' arrest.
But by then, he had disappeared. "The FBI did the extraordinary step of putting him on the 10 Most Wanted list," Shurtleff says.
Jeffs was captured a few months later during a routine traffic stop near Las Vegas. In the car were disguises, cell phones, computers, envelopes stuffed with member's contributions, and $50,000 in cash.
Last year Jeffs, considered God on Earth by his followers, was put on trial in Utah, facing two charges of rape as an accomplice.
"Trial was tough, it really was, the hardest thing was I felt like I was baring my soul," Wall tells 48 Hours.
Her face hidden from cameras, Wall testified about the first night she says she was raped by the man Jeffs forced her to marry. "He said it is time for you to be a wife and do your duty. I said please don't do this, and he just ignored me. He didn't say anything and he just laid me on to the bed," Wall testified in court.
"And no matter what you said, no matter how many times you told him no, if he wanted to have sex with you, he would?" Spencer asks.
"Yes, by force or not by force," Wall says.
She says that aspect never changed.
Jeffs was convicted and is currently serving 10 years to life, but he still has influence in the FLDS' huge financial empire, estimated to be worth $100 million or more.
Not that individual members see much of that: "They were commanded to basically go to work every day, work hard, and give me your money," Brower says.
Since polygamous marriages aren't legal, technically all the wives are simply single mothers, fully eligible for government programs.
Attorney General Shurtleff says they "game the system in that way."
48 Hours found that in the two small border towns, Hilldale and Colorado City, where most of the 6,000 residents are polygamists, the food stamp bill will run to $2.5 million this year alone. "The rest of the society shouldn't be paying for their lifestyle choices," Shurtleff argues.