A Tucson man was sentenced in Pima County Superior Court on Monday for the third time for killing his wife in 2005.

James Darrell Johnson was sentenced to 16 years in prison, minus time already served, for the second-degree murder of Kathryn Johnson.

James Johnson was convicted in a bench trial in 2007 of stabbing Kathryn Johnson to death. He was later sentenced to 22 years in prison.

Separate sentencing was awarded later, however, after Johnson successfully argued that he had waived his right to a jury trial solely to avoid having a jury impose the sentence.

His attorneys later appealed the sentence and won, with the appellate court ruling that the sentencing jury erred in determining the killing to have been done in a cruel, heinous or depraved manner.

Johnson, a former school bus driver, stabbed his wife nearly 40 times and struck her with a blunt object more than 20 times in their midtown home the night she was killed. The couple's two young boys were home sleeping at the time.