Prosecutors in Utah charged a 16-year-old boy with four counts of murder Friday for allegedly shooting to death three people, including an infant and pregnant woman, in an apparent gang confrontation at a carnival.

In all, five people, including two teens wounded in the arm, were shot late Sunday at WestFest in West Valley City, a Salt Lake City suburb.

The shooting happened a day after one at a “No Kings” protest the day before, making for an unusually violent weekend for the Salt Lake City area.

Two of those killed were bystanders: the 8-month-old boy and 41-year-old pregnant woman, Fnu Reena, 41, of West Jordan, Utah. An 18-year-old man slain, Hassan Lugundi, of West Valley City, was the apparent intended target, according to a police affidavit filed in the case.

“I’m gonna tell you guys right now, I know what I hit because I know where I was aiming, and I know where I was shooting. I did not hit no baby,” the teen allegedly told police soon after the shooting.

Police learned later that Reena was eight weeks pregnant.

— The Associated Press