A Tucson grandmother who twice survived cancer died after she was allegedly attacked by a felon outside her apartment complex, authorities said. The Tucson Police Department confirmed that 61-year-old Susan Gehrke died four days after a July 24 attack at an apartment complex. Dahseir Edward Jefferson, 27, was arrested four days after the attack and initially booked on two counts of aggravated assault. Investigators learned that Gehrke and the man had been on an apartment patio when Jefferson allegedly approached the area, became confrontational and assaulted both of them, according to police. After beating cancer twice, her life was taken by a violent individual with prior criminal charges of violence," family said.