Liz Benz still believes the distressed caller's voice was her son's -- the tone, enunciation and cadence all matched her 16-year-old.

Liz Benz still believes the distressed caller's voice was her son's -- the tone, enunciation and cadence all matched her 16-year-old.

WASHINGTON — Liz Benz still believes the distressed caller's voice was her son's — the tone, enunciation and cadence all matched her 16-year-old.