Before revision: Notable lonely hearts and want-ad killers The following accused and convicted murderers and serial killers are known to have used want ads, personal ads, and/or matrimonial bureaus to contact their victims: Elfriede Blauensteiner (1931–2003) – known as " the Black Widow" Viktor Bolkhovsky (b.
After revision: Notable lonely hearts and want-ad killers The following accused and convicted murderers and serial killers are known to have used want ads, personal ads, and/or matrimonial bureaus to contact Their victims: Elfriede Blauensteiner (1931–2003) – known as " the Black Widow" Viktor Bolkhovsky (b.