Raymond Fernandez and Martha Beck

Raymond Fernandez
Born(1914-12-17)December 17, 1914
DiedMarch 8, 1951(1951-03-08) (aged 36)
Sing Sing Prison, New York, U.S.
OccupationConfidence trickster
Criminal statusExecuted by electrocution
Children4
ConvictionFirst degree murder
Criminal penaltyDeath
Details
Victims3–20
Span of crimes
1947–1949
CountryUnited States
StatesMichigan and New York
Martha Beck
Born
Martha Jule Seabrook

(1920-05-06)May 6, 1920
DiedMarch 8, 1951(1951-03-08) (aged 30)
Sing Sing Prison, New York, U.S.
OccupationNurse
Criminal statusExecuted by electrocution
Children2
ConvictionFirst degree murder
Criminal penaltyDeath
Details
Victims3–20
Span of crimes
1947–1949
CountryUnited States
StatesNew York and Michigan

Raymond Martinez Fernandez (December 17, 1914 – March 8, 1951) and Martha Jule Beck (May 6, 1920 – March 8, 1951) were an American serial killer couple. They were convicted of one murder, are known to have committed two more, and were suspected of having killed up to twenty victims during a spree between 1947 and 1949.

After their arrest and trial for serial murder in 1949, Fernandez and Beck became known as the Lonely Hearts Killers for meeting their unsuspecting victims through personal ads, posted in newspaper lonely hearts columns. A number of films and television shows are based on this case.