Martha Ann Johnson (also known as Martha Ann Bowen) (born 1955) is an American serial killer from Georgia convicted of smothering to death three of her children between 1977 and 1982. Johnson was in her third marriage by the age of 22. Her first marriage produced a girl, born in 1971. Her second marriage produced a son in 1975 and her third marriage, to Earl Bowen, produced a son and daughter, born 1979 and 1980, respectively. On September 23, 1977, Johnson claimed 23-month-old James William Taylor was unresponsive when she attempted to wake him up from his nap. He was rushed to the hospital, where he was pronounced dead. The cause of death was determined to be sudden infant death syndrome (SIDS). On November 30, 1980, Johnson claimed her three-month-old daughter Tabitha Jenelle Bowen was blue when she went to wake her up from a nap. Paramedics were unable to revive Tabitha, and her death was also attributed to SIDS.
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