GWINNETT COUNTY, Ga. -- The Supreme Court of Georgia has upheld the murder conviction given to a Gwinnett County woman who killed her adoptive mother in 2006.
Catherine O'Connell and her sister Brenda were found guilty in October 2008 of strangling their mother Muriel to death. Catherine appealed her conviction and life prison sentence to the state's high court; that appeal was rejected Tuesday.
Muriel O'Connell adopted Catherine from a Guatemalan orphanage when she was 11. Muriel adopted Brenda from the same orphanage a few years later.
According to information presented at trial, the sisters quickly bonded, while their relationship with their mother deteriorated. Murial even confided to friends that she believed her daughters tried to poison her by putting diethyl ether in her vodka bottle.