(Radio Iowa) – A Davenport man has been sentenced to a dozen years in prison afer pleading guilty to witness tampering. Thirty-five-year-old Stephen Wayne Toliver admits he hit a woman with a gun so hard she was knocked unconscious. In a plea agreement, Toliver admits he made false accusations against the victim’s family members, prompting investigations by Dubuque Police and state social workers that ultimately cleared the family of any wrong-doing.

According to a news release from the U-S Attorney’s Office, Toliver also sent a threatening letter to the woman he assaulted.