A confrontation inside a Penn Station sandwich shop in Indianapolis turned fatal on August 10, 2019. Seventeen-year-old Connor Jamal Turner, a senior at Lawrence Central High School, was inside the restaurant on Pendleton Pike when 18-year-old Jaylen Ryle, a recent graduate of the same school, entered shortly after 5:30 p.m. Security footage shows an exchange of words, after which Turner walked toward Ryle with his hands out and palms forward. When Turner was only a few feet away, Ryle drew a handgun and fired multiple shots.

Turner was critically injured and later died at a hospital. Ryle stayed at the scene and was arrested; police recovered the firearm in his car and noted he held a lifetime permit to carry. Ryle told Lawrence Police he acted in self-defense and said two people inside the restaurant had threatened to kill him. He was charged with murder.

What details from that evening or the people involved might help explain how a confrontation escalated to lethal force?