A rare Saturday session in the San Angelo courtroom included tearful testimony from a 28-year-old woman who claimed she was molested by Jeffs in his office when she was 8.
"I didn't know I was supposed to tell him no," the woman told the jury.
Jeffs, 55, was convicted last week of various sex charges involving underage members of his sect. The jury could recommend a life sentence.
The Salt Lake Tribune said Jeffs was not in the courtroom Saturday and has declined to have a lawyer present his case. Texas, however, does not allow defendants to be unrepresented in court, and standby attorneys have filled in.