NEW : 48-year-old shooting suspect may have viable defense , analyst says . `` When those kids left to go out and do this , they -- by no means -- did any one of them think that this was going to be a horrible event , '' Lt. Sidney Allen told CNN affiliate KARK . ` Comment: Another teenager was injured ; he was treated and released . The teenagers had gone to a house to do a `` retaliation '' prank , police say .
NEW : 48-year-old shooting suspect may have viable defense , analyst says . Comment: Another teenager was injured ; he was treated and released . The teenagers had gone to a house to do a `` retaliation '' prank , police say .