An Oak Harbor man who purposely crashed his car into a vehicle with his estranged girlfriend and their kids inside was recently sent to prison.

Christopher J. Williams pleaded guilty in Island County Superior Court July 19 to assault in the second degree, assault of a child in the third degree, hit and run and DUI. Williams used his car as a deadly weapon, according to the charges.

The assaults were charged as being domestic violence-related. The DUI was from a separate case in district court. He is also set to plead to two counts of a violation of a no-contact order in another district court case, according to the prosecutor’s office.

A judge sentenced Williams to five years in prison.

In April, a woman reported to police that she encountered Williams at an Oak Harbor store and he smelled of alcohol, so she drove away, according to court documents.

Her car was struck from behind by Williams’ car a few minutes later on Northeast Izett Street. The impact was forceful enough to spin her car, but she and the children were not injured. Witnesses said Williams was speeding prior to the crash.

Two passengers got out of Williams’ car and ran away; Williams drove off after the woman punched him, the investigating officer wrote in a report.

The police report states that Williams has an extensive criminal history. He pleaded guilty to a drive-by shooting in a 2011 Oak Harbor case and was sentenced to three years and three months in prison.