A murderer who punched a deputy after he was convicted of killing his wife and son last month now has threatened the judge at his sentencing hearing in Battle Creek, Mich.

Forty-three-year-old Michael Fisher told the Calhoun County Circuit Court judge on Thursday that he would someday get revenge.

He was convicted May 12 of two counts of first-degree murder in the December 2006 shooting deaths of 38-year-old Candy Fisher and 12-year-old Michael Fisher II.

As that verdict was announced, the defendant punched a sheriff's deputy and tried to grab the officer's handgun. Michael Fisher was subdued at the time with a stun gun.