Troopers took Kowaleski to the Princeton detachment to talk about the incident. She said Slagle called her earlier that day upset over a fight their two children had been involved in on the school bus after school.
Troopers at the detachment Monday said the girls had been kicking each other on the bus.
Kowaleski said Slagle kept texting her after they spoke on the phone and that at one point Harrington, Kowaleski's aunt, took the phone and began texting back. She said Harrington told her to go to the end of the road, that they were going to meet Slagle to "settle this once and for all," according to the complaint.
Kowaleski said she wouldn't walk in the dark without protection and carried a pistol down with her. Slagle was there waiting when Kowaleski arrived with Harrington, who Kowaleski said intended to fight Slagle.
Kowaleski and Slagle then began arguing about their kids.
Here's what happened next, according to the criminal complaint:
Kowaleski said Slagle told her she had a gun and that she would shoot. Kowaleski said she was going to walk away when Slagle ran at her with an object and hit her in the neck. She said she lifted her hand to get Slagle off of her when the gun went off, wounding Slagle.
A search of Kowaleski's house turned up the pistol suspected in the slaying.Troopers still are investigating.