By Dana Kozlov

CHICAGO (CBS) — Chicago police were looking for the gunman who fatally shot a teen boy Sunday afternoon in front of witnesses in the Austin neighborhood.

The victim, Joseph Price, was 14. But the teen’s current guardian says he looked 12, at best. And he can’t understand why anyone would want to shoot him dead.

“It seemed more like a hit, and I couldn’t understand what the purpose on it, when he never really did anything. He don’t even know the neighborhood that well,” Guyland Hill told CBS 2’s Dana Kozlov.

Hill runs the West Side transitional youth home where Price, who was from Maywood, had been living for the last month. The teen was just a few blocks from away, at the corner of Long and Ohio, when witnesses say someone walked up and killed him.

“I was scared because there was a whole bunch of kids outside. It was broad daylight,” one witness said.

Another witness told CBS 2 Price was walking his dog when an adult man came up to him and shot the teen in the arm. As Price lay face down, the witness said, the gunman shot him twice in the back of his head.

Police say the victim was taken to Mount Sinai Hospital, where he was pronounced dead.

Detectives were out in force all over the Austin neighborhood Sunday evening, but they wouldn’t comment on what, if any, leads they have.

Hill says Price had a troubled background. The teen was placed with him because authorities could not find price’s parents, he said.

But Price was set to go live with his sister in Wisconsin on Thursday, where Hill had hoped Price would find some stability.