From the article:
Butler said he heard what sounded like six or seven shots from a high-powered handgun or rifle going off. He said the next sound he heard came from his own sons.News footage.
"They went nuts. They were screaming and come running out of the woods, hollering and yelling at me," Butler said.
Butler's boys told him they were playing with a friend at the lake across the street from a house. They heard a "click" and saw a man pointing a gun in their direction.
911 call placed by the father.