then raped, beat, and murdered those he found inside. he had been linked to at least 15 murders, from children to the elderly, male and female, wealthy and poor. now investigators had a promising lead, one that would finally end the night stalker's reign of terror. here's part two of "the night stalker: i will be avenged." ♪ ♪ reporter: the victim -- her throat had been slashed. he found her horribly mutilated and murdered. reporter: it appears the suspect got in through an open window. he stole a lot of jewelry and graduated to these horrible crimes of violence. it was a night of sheer terror. she begged him not to shoot her. it was an isolated murder here and an isolated one there,