A grand jury has indicted a Phoenix woman accused of stabbing a disabled man 50 times before dismembering and burning his body.

The Maricopa County Attorney's Office said Friday that 33-year-old Angela Simpson is charged with first-degree murder, kidnapping and abandonment or concealment of a dead body in the murder of 46-year-old Terry Neely.

Maricopa County Attorney Andrew Thomas said his office will determine later whether to seek the death penalty.

It was not clear if Simpson, who declined an interview request from The Associated Press, had an attorney.

Earlier this month, Simpson told Phoenix TV station KTVK that she lured Neely, who lived in an assisted care facility, with the promise of sex, then killed him. Neely used a motorized wheelchair.

Phoenix firefighters discovered Neely's body in a burning trash can on Aug. 5. Police arrested Edward McFarland, 36, for allegedly helping to dispose of Neely's body. McFarland was indicted on felony charges of abandonment or concealment of a dead body and hindering prosecution.

An autopsy showed injuries including a three-inch nail hammered into Neely's skull.

Simpson described how she held him for nearly three days, beating him and then dismembering his body. She said she felt no guilt.

"No, I don't feel guilty. I'm a little upset I won't be able to kill more snitches," Simpson said in the jailhouse interview. "I have no remorse about killing him."

Simpson also said this was not the first time she has killed someone, a claim Phoenix Police detectives are still investigating.

"It's going to take a long time because we don't know if she's telling us the truth or not," said Luis Samudio, a Phoenix Police spokesman. "They have to evaluate what she says, review some cases and put her at the scene regardless if it's here or wherever she lived at the time."