A man accused of impregnating his teenage stepdaughter with a syringe eight years ago was convicted Monday of rape.

The jury in the retrial of John Goff, 44, found that he forced Shenna Grimm to be inseminated with his sperm when she was 16, at a time when her mother could no longer conceive.

Jurors also convicted Goff of sexual battery and child endangering, said Jason Adams, a staff attorney for the judge who presided over the trial.

Goff was convicted in 2002 of the same charges and sentenced to 20 years in prison, but last June an appeals court overturned the convictions, saying a detective's testimony about statements by Goff's wife should not have been allowed.

The new jury deliberated about three hours on Friday and broke for the weekend before reaching a decision Monday afternoon.

Goff's lawyer, Jerry McHenry, declined to comment because sentencing and designation of Goff as a sexual offender were still pending.

Bill Canterbury, a spokesman for prosecutor Sherri Bevan Walsh, said Goff cannot be sentenced to more than the 20 years he got in 2002. He has been in prison since then.

"He'll get credit for the years he's already served," Canterbury said.

No sentencing date was set. The sexual offender status hearing was scheduled for April 26.

In the 1990s, John Goff and his wife, Narda, campaigned for a tougher state rape law. Their activism was sparked by the acquittal of a man accused of molesting Grimm. At the time, the law required intercourse for a rape charge.

John Goff's conviction in 2002 came under the tougher state rape law.