17-year old boy shot over a hat at basketball game by another 17-year old boy

17-year old Alvin Upchurch and 17-year old Terrance Wilkins were in a group that had just left a basketball game, on the grounds of Central High School, in Memphis, Tennessee. That's when they and their friends got into an argument with another group of teens, apparently over a hat that one of the other group was wearing.

The argument escalated. At that point, Upchurch pulled out a gun and started shooting, hitting Wilkins, possibly hitting him by mistake. Wilkins was shot in the head and was pronounced dead the next day.

From the article:

What is known is that, about 9 that night, Wilkins and a group of acquaintances -- including Upchurch -- left a basketball game between Central and Melrose High.
As the group was leaving, they got into an argument, apparently with someone in another group who was wearing the hat. Police believe that someone in the group with Upchurch and Wilkins either knocked the hat off or tried to take it.
The argument escalated, police said, leading Upchurch to pull a gun and begin firing shots. It doesn't appear, police said, that Upchurch was trying to shoot Wilkins, since they were in the same group.
Still, at least one of those shots struck Wilkins in the head in a parking lot near Linden and Bellevue, across the street from Central High.
Wilkins was taken to the Regional Medical Center at Memphis, and was pronounced dead the next day, a Saturday. However, he wasn't officially taken off life support until Sunday, police have said.
....
Upchurch was also wanted in connection with an aggravated robbery that occurred Dec. 2 near Walker and College. Two men, armed with a gun, robbed a victim of his wallet and phone in that incident.

Every gun in the hands of a child must first pass through the hands of an adult.