Wichita ? The Sedgwick County District Attorney’s office has filed murder charges against a man accused of raping a 100-year-old woman, who died three weeks after the alleged attack.

The district attorney’s office said Tuesday that 36-year-old Kasey Nesbitt has been charged with first-degree felony murder, rape and aggravated burglary. Nesbitt’s preliminary hearing is set for Thursday.

He’s accused of raping the woman on Sept. 30, 2014. The woman died Oct. 21, 2014. Nesbitt had been charged earlier with rape and aggravated burglary.

District Attorney Marc Bennett says his office sought a new preliminary hearing after receiving the autopsy report in mid-May. Bennett say the autopsy report classified the woman’s death from a blood clot as a homicide.