(KFOR) Horrified witnesses watch Sunday as Oklahoma Labor Commissioner Mark Costello was stabbed to death by his son, Christian Costello, at an Oklahoma City restaurant.
Sources say Costello’s son had reached out to his parents and asked them to meet him at Braum’s restaurant.
Police say it started inside Braum’s with the suspect stabbing the victim and then proceded outside.
Patrick Spencer was driving on May when he saw someone he thought had been shot.
“We got a closer look and there was a guy chasing him with a knife,” said Spencer. “It was shocking and dramatic.”
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