Texas killer's wife pleads guilty in connection with district attorney murder case

FILE - In a Dec. 16, 2014 file photo, Kim Williams, the estranged wife of Eric Williams, testifies during the punishment phase of Eric Williams' capital murder trial at the Rockwall County Courthouse in Rockwall, Texas. Williams pleaded guilty Tuesday, Dec. 30, 2014 to murder and was sentenced to 40 years in prison after earlier testifying that she helped her husband gun down a district attorney, his wife and a top assistant in a revenge plot. Williams appeared in court two weeks after her husband, Eric Williams, was sentenced to death for one of the three killings. (AP Photo/The Dallas Morning News, Vernon Bryant, Pool, File) (The Associated Press)

A North Texas woman has pleaded guilty to murder and been sentenced to 40 years in prison after she testified that she helped her husband gun down a district attorney, his wife and a top assistant in a revenge plot.

Kim Williams appeared in court Tuesday, two weeks after her husband, Eric Williams, was sentenced to death for one of the three killings.

She testified during Eric Williams' sentencing hearing that she was a "willing participant," driving the getaway car after the January 2013 shooting of prosecutor Mark Hasse and helping hide weapons after the March 2013 shootings of Kaufman County District Attorney Mike McLelland and his wife, Cynthia.

Eric Williams was prosecuted in 2012 for stealing county-owned equipment. He lost his job and law license as a result.