A 23-year-old Oklahoma man has been sentenced to 33 years in prison after acknowledging he killed his father three years ago and hid his body in a freezer.

Former high school soccer star Andrew Jude Thompson pleaded guilty Wednesday in Oklahoma County District Court to first-degree manslaughter.

Prosecutors had charged Thompson with first-degree murder and his trial was set to start Dec. 14.

In December 2006, authorities found the body of 48-year-old Emmanuel Thompson stuffed in a car trunk, not long after a witness had reported seeing a body in a freezer at the home Andrew Thompson and his father shared in The Village.

Part of Andrew Thompson's guilty plea included an acknowledgment that he hit his father in the head with an ax "in the heat of passion, during a verbal argument."