that breaks my heart that trevor duely took my daughter's best friend away from her. she'll never have her daddy. >> reporter: danielle's testimony about how and why the situation turned violent is key in a case that hinges on self-defense. danielle now 10 recalled how her father asked duely where the signs were that said no skate boarding on the court. >> my dad got on top of him so he could keep him down so he could get the answer. >> where were your dad's hands? >> on his arms. >> on the man's arms? >> yeah. >> reporter: the little girl then recalled her father's last moments. >> i think the guy pulled out the gun then. >> did you hear anything? >> yeah. >> what did you hear? >> like when it shot. >> you heard a gunshot? >> yeah. >> did your dad say anything then? >> yeah. >> what did he say? >> call the ambulance. i've been shot. >> reporter: when kanina james got there, her husband was already dead, and her daughter was crying, asking why isn't anyone helping my daddy? randi kaye, cnn, valrico, florida. >> so the stand your ground law may be at the heart of this