all day long, harold harper and his wife, judith, were wondering why they couldn't reach their daughter, erin, and their 2-year-old granddaughter, erica. harold, a retired factory worker and judith, a homemaker, talked to their daughter nearly every day. so, the silence was strange. then the tv news flashed on. >> first here at 7:00 -- >> it said there had been a shooting down on wilson avenue, where she lived. and we thought, oh, my god. >> he and judith picked up pearn's oldest daughter, ebony, and drove down to the house. >> there was a whole bunch of people standing outside and it was taped off and it was a mess. >> so, you knew that something was up? >> yeah. and then i just -- >> freaked out? >> yeah. >> it wasn't long before judith and harold's worst fears were confirmed. >> the jewelry she had on, they brought it to me. i knew it was erin then. >> their daughter, erin harper, 42, was dead in the doorway. >> when you saw that jewelry, you knew it was your daughter, what went through you, judy? >> i lost a son in '78 in a car wreck. he was already gone when i got to the hospital.