Cathy Costello, right, the widow of slain Oklahoma Labor Commissioner(02)

Cathy Costello, right, the widow of slain Oklahoma Labor Commissioner(02)


Image gallery: Oklahoma Labor Commissioner Allegedly Fatally Stabbed By Son In Restaurant

Oklahoma official Mark Costello stabbed by son, cops say CNN Oklahoma labor commissioner fatally stabbed; adult son arrested for Cathy Costello, right, the widow of slain Oklahoma Labor Commissioner Oklahoma Labor Commissioner Mark Costello stabbed to death CBS News Oklahoma Labor Commissioner Mark Costello stabbed to death CBS News