>> reporter: the caller was the apartment's maintenance supervisor, who'd been working near denita's unit. >> when he heard the shot, he'd looked up in that direction and he told me he saw a female that was about 5'10", hair in a ponytail, and had some kind of emblems on her clothing. >> the young lady that stays over here, she heard it too and she's like upset and shaking and stuff like that. >> she was covering her face and she went and got into her truck and started driving away. >> reporter: this woman looked frightened or -- >> he said like she was distraught. she had her hands over her face and moving quickly. >> reporter: like they're horrified by what they've seen. >> correct. >> reporter: so more witness than perpetrator maybe. >> that's exactly what he thought. >> reporter: then, according to the maintenance man, the woman got into a burgundy-colored ford explorer which he then followed in his truck. >> he pulls up beside her, so they're kind of looking directly