killed and 32 injured at a dance studio. here s miguel almaguer with more. reporter: not far from the bullet-riddled crime scene, shorts today announced the arrest of two teenage brothers, 17-year-old ty reik mccullough and travis mccullough, as well as a third man wilson lamar hill jr. facing four counts of reckless murder after gunfire tore through a sweet 16 party in alabama that left 32 injured. we are absolutely still in the early stages of this investigation. reporter: releasing no motive for saturday night s mass shooting inside a small dance hall in dadeville, authorities say their investigation is complex. the four victims who died were all young adults including high school senior, phil dowdell, who lost his life in his sister s arms on the night she was celebrating her sweet 16. i m glad they got