Troy Davis' Sister Dies Martina Davis-Correia spread word about his case between cancer treatments By Kevin Spak, Newser Staff Posted Dec 2, 2011 6:32 AM CST 6 comments Comments Martina Davis-Correia gets into a car after the funeral of her brother Troy Davis in Savannah, Ga., Saturday, Oct. 1, 2011. (AP Photo/Stephen Morton) (Newser) – Martina Davis-Correia died yesterday after a long battle with breast cancer—much of which coincided with her battle on behalf of her brother, controversial death row inmate Troy Davis, who was put to death in September. Davis-Correia, 42, had campaigned for Troy, delivering speeches and attending rallies in between her stints in the hospital, USA Today reports. She was originally diagnosed with cancer in 2000. News of Davis-Correia’s death first broke in a Facebook post by a death penalty opponent who had worked with her. The CEO of Amnesty International called Davis-Correia "a powerful example of how one person can make a difference ... she remained brave and defiant to the core of her being, stating her conviction that one day [her brother's] death would be the catalyst for ending the death penalty." She was the third Davis-family death this year; her mother, Virginia Davis, died a few months before Troy was executed.