"You can't make this up," said Midwest City Police Chief Brandon Clabes. "This is real life and it happened."
Clabes described the hostage situation as a scene from a movie.
"You've got the ingredients of a two and a half year old helpless victim, you've got a mother who has to standby helplessly and watch as her daughter is being held by a mental patient with a knife, and you have our officers responding," said Clabes.
Surveillance cameras at the Midwest City Wal-Mart recorded the whole situation as the suspect, Sammie Wallace, took a 2-year-old child from a shopping cart and held a knife to her stomach.
"You could see the knife," said Terry Parker, a witness. "You could see the baby, and you could see the mama."
Without knowing what was going to happen, Parker sprang into action and blocked Wallace with his cart until police arrived.
"If that gentleman was to come my direction he would have to go through me or my cart to do that," said Parker.
Moments later, the building was evacuated and the negotiations began.
"During negotiations they try all kinds of cues," said Clabes. "We try to talk about his family, his job, how the child is not afraid of him."
But Clabes said those efforts failed and Wallace started a countdown to harm the child.
"We waited until the last second in our opinion to use deadly force," said Clabes.
When Wallace neared zero in the countdown, the negotiator shot him.
"When he took that shot he made sure he was at point blank range to make sure there was no ability to harm that child," said Clabes.
Parker believes they didn't do anything that they shouldn't have done.
"It's sad," said Parker. "It's sad that it even had to happen, but overall I think it ended the way it needed to end."
The little girl was uninjured in the situation.
Oklahoma County District Attorney David Prater said the officer who shot Wallace was justified in his actions.