Akard said once on scene, officers found two people who'd been shot.
The first victim, identified as 29-year-old Latesha Pettaway, was shot twice. Once in the head, and once in the chest.
Akard said she was pronounced dead at the scene.
The second victim is believed to be her brother, 23-year-old Shannon Taylor.
He was transported to Comanche County Memorial Hospital with two gun shot woundsm, and then taken to Oklahoma City.
He is listed in stable condition.
Police said they believe the victims were arguing about something outside the bowling alley, then the male victim, Shannon Taylor, went inside.
That's when police said Latesha Pettaway began arguing with the suspect.
Police said Shannon Taylor saw his sister and the shooter arguing, and came back out to help.
"When our second victim came back out of the bowling alley, he tried to calm it down. Tried to pull the suspect away," explained Captain Craig Akard, "that ended up getting physical, and at some point, a gun was pulled out by the suspect and both victims were shot."
The shooting, however, didn't stop at the bowling alley.
Captain Akard said a few minutes after responding to the bowling alley, officers were called to the 400 block of Northwest 68th.
Akard said officers found the suspect, 24-year-old Ricky McDaniel, at the home.
Akard said McDaniel was the victim of a self-inflicted gunshot would to the head.
He was taken to Comanche County Memorial Hospital, but died around 12:30 Monday afternoon.
Police said Letesha Pettaway McDaniel were in a relationship together.
Police records show McDaniel did have a history of domestic violence.
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